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Finding the Fourth Proportional to 10,408.43, 15,600.22 and 5,475.53

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Solution

The fourth proportional to 10,408.43, 15,600.22 and 5,475.53 is: 8,206.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,408.43 : 15,600.22 = 5,475.53 : x
  2. Step 2: Convert to fraction form
    10,408.43/15,600.22 = 5,475.53/x
  3. Step 3: Cross multiply
    10,408.43x = 15,600.22 × 5,475.53
  4. Step 4: Simplify right side
    10,408.43x = 85,419,472.62
  5. Step 5: Solve for x
    x = 85,419,472.62/10,408.43
  6. Step 6: Final answer
    x = 8,206.76

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1.5x scale

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.