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Finding the Fourth Proportional to 52,545.80, 78,818.70 and 15,609.80

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Solution

The fourth proportional to 52,545.80, 78,818.70 and 15,609.80 is: 23,414.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,545.80 : 78,818.70 = 15,609.80 : x
  2. Step 2: Convert to fraction form
    52,545.80/78,818.70 = 15,609.80/x
  3. Step 3: Cross multiply
    52,545.80x = 78,818.70 × 15,609.80
  4. Step 4: Simplify right side
    52,545.80x = 1,230,344,143.26
  5. Step 5: Solve for x
    x = 1,230,344,143.26/52,545.80
  6. Step 6: Final answer
    x = 23,414.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.