Question

If 10, a, 8 and 12 are in the proportion, Find a.
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Answer 1

Answer:

the numbers 10,a,8 and 12 are in the proportion.

Step-by-step explanation:

10:a=8:12

a×8=10×12,[since,the product of the means = the product of the extremes]

a=(10×12)/8

the answer is

{a=15}