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Finding the Fourth Proportional to 44,856, 67,286.70 and 13,691.52

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Solution

The fourth proportional to 44,856, 67,286.70 and 13,691.52 is: 20,538.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,856 : 67,286.70 = 13,691.52 : x
  2. Step 2: Convert to fraction form
    44,856/67,286.70 = 13,691.52/x
  3. Step 3: Cross multiply
    44,856x = 67,286.70 × 13,691.52
  4. Step 4: Simplify right side
    44,856x = 921,257,198.78
  5. Step 5: Solve for x
    x = 921,257,198.78/44,856
  6. Step 6: Final answer
    x = 20,538.10

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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.