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Finding the Fourth Proportional to 5,761.98, 8,640.80 and 2,473.38

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Solution

The fourth proportional to 5,761.98, 8,640.80 and 2,473.38 is: 3,709.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,761.98 : 8,640.80 = 2,473.38 : x
  2. Step 2: Convert to fraction form
    5,761.98/8,640.80 = 2,473.38/x
  3. Step 3: Cross multiply
    5,761.98x = 8,640.80 × 2,473.38
  4. Step 4: Simplify right side
    5,761.98x = 21,371,981.90
  5. Step 5: Solve for x
    x = 21,371,981.90/5,761.98
  6. Step 6: Final answer
    x = 3,709.14

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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.