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Finding the Fourth Proportional to 40,545.68, 60,818.10 and 12,843.68

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Solution

The fourth proportional to 40,545.68, 60,818.10 and 12,843.68 is: 19,265.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,545.68 : 60,818.10 = 12,843.68 : x
  2. Step 2: Convert to fraction form
    40,545.68/60,818.10 = 12,843.68/x
  3. Step 3: Cross multiply
    40,545.68x = 60,818.10 × 12,843.68
  4. Step 4: Simplify right side
    40,545.68x = 781,128,214.61
  5. Step 5: Solve for x
    x = 781,128,214.61/40,545.68
  6. Step 6: Final answer
    x = 19,265.39

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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.