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Finding the Fourth Proportional to 7,147.92, 10,724.95 and 3,452.92

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Solution

The fourth proportional to 7,147.92, 10,724.95 and 3,452.92 is: 5,180.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,147.92 : 10,724.95 = 3,452.92 : x
  2. Step 2: Convert to fraction form
    7,147.92/10,724.95 = 3,452.92/x
  3. Step 3: Cross multiply
    7,147.92x = 10,724.95 × 3,452.92
  4. Step 4: Simplify right side
    7,147.92x = 37,032,412.08
  5. Step 5: Solve for x
    x = 37,032,412.08/7,147.92
  6. Step 6: Final answer
    x = 5,180.87

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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.