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Finding the Fourth Proportional to 48,951.50, 67,553.08 and 29,079.50

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Solution

The fourth proportional to 48,951.50, 67,553.08 and 29,079.50 is: 40,129.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,951.50 : 67,553.08 = 29,079.50 : x
  2. Step 2: Convert to fraction form
    48,951.50/67,553.08 = 29,079.50/x
  3. Step 3: Cross multiply
    48,951.50x = 67,553.08 × 29,079.50
  4. Step 4: Simplify right side
    48,951.50x = 1,964,409,789.86
  5. Step 5: Solve for x
    x = 1,964,409,789.86/48,951.50
  6. Step 6: Final answer
    x = 40,129.72

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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.