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Finding the Fourth Proportional to 57,672.45, 86,387.07 and 36,601.38

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Solution

The fourth proportional to 57,672.45, 86,387.07 and 36,601.38 is: 54,824.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,672.45 : 86,387.07 = 36,601.38 : x
  2. Step 2: Convert to fraction form
    57,672.45/86,387.07 = 36,601.38/x
  3. Step 3: Cross multiply
    57,672.45x = 86,387.07 × 36,601.38
  4. Step 4: Simplify right side
    57,672.45x = 3,161,885,976.16
  5. Step 5: Solve for x
    x = 3,161,885,976.16/57,672.45
  6. Step 6: Final answer
    x = 54,824.89

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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.