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Solve for the variable in the following proportion.

4 is to 5 as 10 is to a

8
12
12.5
20

1 Answer

5 votes

Answer:

x=12.5

Explanation:

4/5=10/x

cross product

5*10=4x

50=4x

x=50/4

simplify

x=25/2

x=12.5

User Michael Hunziker
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