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Finding the Fourth Proportional to 47,602.62, 71,411.22 and 12,545.01

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Solution

The fourth proportional to 47,602.62, 71,411.22 and 12,545.01 is: 18,819.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,602.62 : 71,411.22 = 12,545.01 : x
  2. Step 2: Convert to fraction form
    47,602.62/71,411.22 = 12,545.01/x
  3. Step 3: Cross multiply
    47,602.62x = 71,411.22 × 12,545.01
  4. Step 4: Simplify right side
    47,602.62x = 895,854,469.01
  5. Step 5: Solve for x
    x = 895,854,469.01/47,602.62
  6. Step 6: Final answer
    x = 18,819.44

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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.