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Finding the Fourth Proportional to 39,427, 59,122.68 and 11,340.61

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Solution

The fourth proportional to 39,427, 59,122.68 and 11,340.61 is: 17,005.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,427 : 59,122.68 = 11,340.61 : x
  2. Step 2: Convert to fraction form
    39,427/59,122.68 = 11,340.61/x
  3. Step 3: Cross multiply
    39,427x = 59,122.68 × 11,340.61
  4. Step 4: Simplify right side
    39,427x = 670,487,256.03
  5. Step 5: Solve for x
    x = 670,487,256.03/39,427
  6. Step 6: Final answer
    x = 17,005.79

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.