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Finding the Fourth Proportional to 52,474.62, 72,387.68 and 33,321.61

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Solution

The fourth proportional to 52,474.62, 72,387.68 and 33,321.61 is: 45,966.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,474.62 : 72,387.68 = 33,321.61 : x
  2. Step 2: Convert to fraction form
    52,474.62/72,387.68 = 33,321.61/x
  3. Step 3: Cross multiply
    52,474.62x = 72,387.68 × 33,321.61
  4. Step 4: Simplify right side
    52,474.62x = 2,412,073,875.16
  5. Step 5: Solve for x
    x = 2,412,073,875.16/52,474.62
  6. Step 6: Final answer
    x = 45,966.49

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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.