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Finding the Fourth Proportional to 63,458.88, 87,560.64 and 38,309.76

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Solution

The fourth proportional to 63,458.88, 87,560.64 and 38,309.76 is: 52,859.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,458.88 : 87,560.64 = 38,309.76 : x
  2. Step 2: Convert to fraction form
    63,458.88/87,560.64 = 38,309.76/x
  3. Step 3: Cross multiply
    63,458.88x = 87,560.64 × 38,309.76
  4. Step 4: Simplify right side
    63,458.88x = 3,354,427,103.85
  5. Step 5: Solve for x
    x = 3,354,427,103.85/63,458.88
  6. Step 6: Final answer
    x = 52,859.85

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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.