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Finding the Fourth Proportional to 6,291.92, 9,445.17 and 3,375.92

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Solution

The fourth proportional to 6,291.92, 9,445.17 and 3,375.92 is: 5,067.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,291.92 : 9,445.17 = 3,375.92 : x
  2. Step 2: Convert to fraction form
    6,291.92/9,445.17 = 3,375.92/x
  3. Step 3: Cross multiply
    6,291.92x = 9,445.17 × 3,375.92
  4. Step 4: Simplify right side
    6,291.92x = 31,886,138.31
  5. Step 5: Solve for x
    x = 31,886,138.31/6,291.92
  6. Step 6: Final answer
    x = 5,067.79

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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.