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Finding the Fourth Proportional to 70,457, 97,233.60 and 38,627.12

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Solution

The fourth proportional to 70,457, 97,233.60 and 38,627.12 is: 53,307.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,457 : 97,233.60 = 38,627.12 : x
  2. Step 2: Convert to fraction form
    70,457/97,233.60 = 38,627.12/x
  3. Step 3: Cross multiply
    70,457x = 97,233.60 × 38,627.12
  4. Step 4: Simplify right side
    70,457x = 3,755,853,935.23
  5. Step 5: Solve for x
    x = 3,755,853,935.23/70,457
  6. Step 6: Final answer
    x = 53,307.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.