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Finding the Fourth Proportional to 48,781.38, 67,329.15 and 29,657.08

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Solution

The fourth proportional to 48,781.38, 67,329.15 and 29,657.08 is: 40,933.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,781.38 : 67,329.15 = 29,657.08 : x
  2. Step 2: Convert to fraction form
    48,781.38/67,329.15 = 29,657.08/x
  3. Step 3: Cross multiply
    48,781.38x = 67,329.15 × 29,657.08
  4. Step 4: Simplify right side
    48,781.38x = 1,996,785,987.88
  5. Step 5: Solve for x
    x = 1,996,785,987.88/48,781.38
  6. Step 6: Final answer
    x = 40,933.36

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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.