Question

in the numbers 6 14 18 38 what number should be added to get direct proportion

Answer 1

Answer:

Step-by-step explanation:

(6+x)/(14+x)=(18+x)/(38+x)

(6+x)(38+x)=(18+x)(14+x)

228 +44x +x^2 = 252+32x +x^2

12x = 24

x=2

Therefore, the number 'x' is 2!

8:16:20:40

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