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Finding the Fourth Proportional to 62,073.92, 85,691.04 and 39,730.88

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Solution

The fourth proportional to 62,073.92, 85,691.04 and 39,730.88 is: 54,847.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,073.92 : 85,691.04 = 39,730.88 : x
  2. Step 2: Convert to fraction form
    62,073.92/85,691.04 = 39,730.88/x
  3. Step 3: Cross multiply
    62,073.92x = 85,691.04 × 39,730.88
  4. Step 4: Simplify right side
    62,073.92x = 3,404,580,427.32
  5. Step 5: Solve for x
    x = 3,404,580,427.32/62,073.92
  6. Step 6: Final answer
    x = 54,847.20

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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.