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9 February, 01:15

Which pair of ratios form a proportion?

3 : 4 and 4 : 5

10 : 12 and 16 : 18

7 : 10 and 10 : 14

5 : 8 and 20 : 32

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Answers (2)
  1. 9 February, 01:44
    0
    5:8 and 20:32

    If you multiply both 5 and 8 by 4 you get 20:32
  2. 9 February, 03:17
    0
    5:8 and 20:32 would be a proportion.

    Easy way to find this:

    Set up the proportion as a fraction.

    Use the cross product property. Multiply the diagonals and if the products of the diagonals are the same, then they are proportional.
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