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Finding the Fourth Proportional to 8,649.92, 11,932.50 and 5,062.56

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Solution

The fourth proportional to 8,649.92, 11,932.50 and 5,062.56 is: 6,983.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,649.92 : 11,932.50 = 5,062.56 : x
  2. Step 2: Convert to fraction form
    8,649.92/11,932.50 = 5,062.56/x
  3. Step 3: Cross multiply
    8,649.92x = 11,932.50 × 5,062.56
  4. Step 4: Simplify right side
    8,649.92x = 60,408,997.20
  5. Step 5: Solve for x
    x = 60,408,997.20/8,649.92
  6. Step 6: Final answer
    x = 6,983.76

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1.5x scale

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.