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Finding the Fourth Proportional to 5,146.57, 7,721.13 and 2,375.17

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Solution

The fourth proportional to 5,146.57, 7,721.13 and 2,375.17 is: 3,563.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,146.57 : 7,721.13 = 2,375.17 : x
  2. Step 2: Convert to fraction form
    5,146.57/7,721.13 = 2,375.17/x
  3. Step 3: Cross multiply
    5,146.57x = 7,721.13 × 2,375.17
  4. Step 4: Simplify right side
    5,146.57x = 18,338,996.34
  5. Step 5: Solve for x
    x = 18,338,996.34/5,146.57
  6. Step 6: Final answer
    x = 3,563.35

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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.