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Finding the Fourth Proportional to 7,481.35, 10,324.20 and 4,124.17

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Solution

The fourth proportional to 7,481.35, 10,324.20 and 4,124.17 is: 5,691.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,481.35 : 10,324.20 = 4,124.17 : x
  2. Step 2: Convert to fraction form
    7,481.35/10,324.20 = 4,124.17/x
  3. Step 3: Cross multiply
    7,481.35x = 10,324.20 × 4,124.17
  4. Step 4: Simplify right side
    7,481.35x = 42,578,755.91
  5. Step 5: Solve for x
    x = 42,578,755.91/7,481.35
  6. Step 6: Final answer
    x = 5,691.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.