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Finding the Fourth Proportional to 63,649.53, 87,856.92 and 45,796.41

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Solution

The fourth proportional to 63,649.53, 87,856.92 and 45,796.41 is: 63,213.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,649.53 : 87,856.92 = 45,796.41 : x
  2. Step 2: Convert to fraction form
    63,649.53/87,856.92 = 45,796.41/x
  3. Step 3: Cross multiply
    63,649.53x = 87,856.92 × 45,796.41
  4. Step 4: Simplify right side
    63,649.53x = 4,023,531,529.66
  5. Step 5: Solve for x
    x = 4,023,531,529.66/63,649.53
  6. Step 6: Final answer
    x = 63,213.85

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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.