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Finding the Fourth Proportional to 63,545.46, 87,691.92 and 34,473.40

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Solution

The fourth proportional to 63,545.46, 87,691.92 and 34,473.40 is: 47,572.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,545.46 : 87,691.92 = 34,473.40 : x
  2. Step 2: Convert to fraction form
    63,545.46/87,691.92 = 34,473.40/x
  3. Step 3: Cross multiply
    63,545.46x = 87,691.92 × 34,473.40
  4. Step 4: Simplify right side
    63,545.46x = 3,023,038,634.93
  5. Step 5: Solve for x
    x = 3,023,038,634.93/63,545.46
  6. Step 6: Final answer
    x = 47,572.85

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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.