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Finding the Fourth Proportional to 66,553.73, 91,842.68 and 36,337.89

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Solution

The fourth proportional to 66,553.73, 91,842.68 and 36,337.89 is: 50,145.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,553.73 : 91,842.68 = 36,337.89 : x
  2. Step 2: Convert to fraction form
    66,553.73/91,842.68 = 36,337.89/x
  3. Step 3: Cross multiply
    66,553.73x = 91,842.68 × 36,337.89
  4. Step 4: Simplify right side
    66,553.73x = 3,337,369,021.46
  5. Step 5: Solve for x
    x = 3,337,369,021.46/66,553.73
  6. Step 6: Final answer
    x = 50,145.49

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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.