Question

Find the third proportional to 7 and 14

Answer 1

Answer:

28

Step-by-step explanation:

7:14::14:x

7*x=14*14

x=14*14÷7

x=28

Answer 2

Answer:

Third proportional to 7 and 14 =

let the third proportion be x

7: 14 :: 14:x

we know that , using properties of proportionality

a:b:: b:c

two numbers are proportional when it satisfy the following condition

ac = b²

∴ the product of mean = product of extreme

7x= 14 ×14

7x = 196

x = 28

Third proportion is 28.

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