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What are the Means and Extremes of Proportions?

How Do We Find the Means and Extremes of Proportions?

Summary

  1. 'a', 'b', 'c', 'd', and 'x' are variables here, representing numbers
  2. 'a/b = c/d' is a proportion
  3. Extremes are always in the top left and bottom right corners of the proportion
  4. Means are always in the bottom left and top right corners of the proportion
  5. '5/7 = 15/21' is an example of a proportion with numbers
  6. '3/x = 4/12' is an example of a proportion with numbers AND variables

Notes

    1. 'a', 'b', 'c', and 'd' are variables here, representing numbers
    1. Extremes are in the top left and bottom right corners of a proportion
    2. 'a' and 'd' are variables here, representing numbers
    1. Means are in the bottom left and top right corners of a proportion
    2. 'b' and 'c' are variables here, representing numbers
    1. '5/7 = 15/21' is the proportion
    1. '5' is in the top left corner and '21' is in the bottom right corner of the proportion
    1. '7' is in the bottom left corner and '15' is in the top right corner of the proportion
    1. '3/x = 4/12' is the proportion
    2. This proportion contains numbers and variables
    3. 'x' is the variable in this example
    1. '3' is in the top left corner and '12' is in the bottom right corner of the proportion
    1. 'x' is in the bottom left corner and '4' is in the top right corner of the proportion
    2. 'x' is a variable representing a number
    1. The extremes are in the top left and bottom right corners, while the means are in the bottom left and top right corners