Question

Find x, if 3, x, x, 12 are in
are in proportion​

Answer 1

Answer:

if they are in proportion,then 3/x=x/12

36=x²

x= positive and negative 6

but we can't take negative 6

so,x=6

Answer 2

Answer:

3:x::x:12

12*3::x^2

x=√36

x=6

Step-by-step explanation:

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