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Finding the Fourth Proportional to 23,691.74, 35,449.92 and 18,997.40

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Solution

The fourth proportional to 23,691.74, 35,449.92 and 18,997.40 is: 28,425.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,691.74 : 35,449.92 = 18,997.40 : x
  2. Step 2: Convert to fraction form
    23,691.74/35,449.92 = 18,997.40/x
  3. Step 3: Cross multiply
    23,691.74x = 35,449.92 × 18,997.40
  4. Step 4: Simplify right side
    23,691.74x = 673,456,310.21
  5. Step 5: Solve for x
    x = 673,456,310.21/23,691.74
  6. Step 6: Final answer
    x = 28,425.79

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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.