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Finding the Fourth Proportional to 10,375.92, 15,572.21 and 5,448.48

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Solution

The fourth proportional to 10,375.92, 15,572.21 and 5,448.48 is: 8,177.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,375.92 : 15,572.21 = 5,448.48 : x
  2. Step 2: Convert to fraction form
    10,375.92/15,572.21 = 5,448.48/x
  3. Step 3: Cross multiply
    10,375.92x = 15,572.21 × 5,448.48
  4. Step 4: Simplify right side
    10,375.92x = 84,844,847.50
  5. Step 5: Solve for x
    x = 84,844,847.50/10,375.92
  6. Step 6: Final answer
    x = 8,177.09

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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.