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Finding the Fourth Proportional to 48,778.38, 67,318.83 and 29,656.71

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Solution

The fourth proportional to 48,778.38, 67,318.83 and 29,656.71 is: 40,929.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,778.38 : 67,318.83 = 29,656.71 : x
  2. Step 2: Convert to fraction form
    48,778.38/67,318.83 = 29,656.71/x
  3. Step 3: Cross multiply
    48,778.38x = 67,318.83 × 29,656.71
  4. Step 4: Simplify right side
    48,778.38x = 1,996,455,018.85
  5. Step 5: Solve for x
    x = 1,996,455,018.85/48,778.38
  6. Step 6: Final answer
    x = 40,929.10

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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.