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Finding the Fourth Proportional to 27,755.87, 41,629.24 and 11,956.61

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Solution

The fourth proportional to 27,755.87, 41,629.24 and 11,956.61 is: 17,932.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,755.87 : 41,629.24 = 11,956.61 : x
  2. Step 2: Convert to fraction form
    27,755.87/41,629.24 = 11,956.61/x
  3. Step 3: Cross multiply
    27,755.87x = 41,629.24 × 11,956.61
  4. Step 4: Simplify right side
    27,755.87x = 497,744,557.38
  5. Step 5: Solve for x
    x = 497,744,557.38/27,755.87
  6. Step 6: Final answer
    x = 17,932.95

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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.