Answer the question in maximum 15 to 20 words. This question carries 03 marks.[MPPSC 2023]
Determine x if 2, x, x, and 8 are all in proportion.
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The number are in proportion
2:x=x:8
We can write equation in
2/x=x/8
Now, cross multiply
2*8=x*x
Simplify
16=x^2
Square root of both side
x=+-√16
x=+-4
x=4
Value of x is 4