Question

if 28 is the third proportional to 7 and x, then the value of x is what? who answers it i will give them 15 points and mark it as a brainliest answer

Answer 1

7/x = x/ 28 therefore x^2 = 28 x 7

Which means that x = 14

Please mark brainliest or thanks if it helped :D

Answer 2

a:b::b:c
7:x::x:28
x×x=28×7
x²= 196
x=√196
x=14

so value of x=14
7:14::14:28