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Finding the Fourth Proportional to 48,585, 72,712.88 and 29,876.88

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Solution

The fourth proportional to 48,585, 72,712.88 and 29,876.88 is: 44,714.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,585 : 72,712.88 = 29,876.88 : x
  2. Step 2: Convert to fraction form
    48,585/72,712.88 = 29,876.88/x
  3. Step 3: Cross multiply
    48,585x = 72,712.88 × 29,876.88
  4. Step 4: Simplify right side
    48,585x = 2,172,433,990.21
  5. Step 5: Solve for x
    x = 2,172,433,990.21/48,585
  6. Step 6: Final answer
    x = 44,714.09

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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.