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Finding the Fourth Proportional to 48,474.60, 72,711.90 and 36,724.20

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Solution

The fourth proportional to 48,474.60, 72,711.90 and 36,724.20 is: 55,086.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,474.60 : 72,711.90 = 36,724.20 : x
  2. Step 2: Convert to fraction form
    48,474.60/72,711.90 = 36,724.20/x
  3. Step 3: Cross multiply
    48,474.60x = 72,711.90 × 36,724.20
  4. Step 4: Simplify right side
    48,474.60x = 2,670,286,357.98
  5. Step 5: Solve for x
    x = 2,670,286,357.98/48,474.60
  6. Step 6: Final answer
    x = 55,086.30

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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.