if 1/3,1.3,1/9;x are in proportion then find value of x
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Answer:
(1/3)/1.3=(1/9)/x
1×10/3×13=1/9×x
10/39=1/9×x
10×9x=1×39
9x=39/10
x=39/10×9
x=13/10×3=1.3/3=0.433
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