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Finding the Fourth Proportional to 48,474.10, 72,711.15 and 29,811.70

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Solution

The fourth proportional to 48,474.10, 72,711.15 and 29,811.70 is: 44,717.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,474.10 : 72,711.15 = 29,811.70 : x
  2. Step 2: Convert to fraction form
    48,474.10/72,711.15 = 29,811.70/x
  3. Step 3: Cross multiply
    48,474.10x = 72,711.15 × 29,811.70
  4. Step 4: Simplify right side
    48,474.10x = 2,167,642,990.46
  5. Step 5: Solve for x
    x = 2,167,642,990.46/48,474.10
  6. Step 6: Final answer
    x = 44,717.55

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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.