Question

find the value of X such that the following numbers are in continued proportion : 9,12,X. ​

Answer 1

Answer:

a1=9

a2=12

d=?

therefore,

a2-a1=d

12-9=3

d=3

a3=a2+d

12+3

a3=15

Answer 2

Answer:

x will be 15

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