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Finding the Fourth Proportional to 2,343.72, 3,517.11 and 1,248.87

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Solution

The fourth proportional to 2,343.72, 3,517.11 and 1,248.87 is: 1,874.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,343.72 : 3,517.11 = 1,248.87 : x
  2. Step 2: Convert to fraction form
    2,343.72/3,517.11 = 1,248.87/x
  3. Step 3: Cross multiply
    2,343.72x = 3,517.11 × 1,248.87
  4. Step 4: Simplify right side
    2,343.72x = 4,392,413.17
  5. Step 5: Solve for x
    x = 4,392,413.17/2,343.72
  6. Step 6: Final answer
    x = 1,874.12

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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.