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Finding the Fourth Proportional to 63,390.61, 87,498.48 and 36,550.99

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Solution

The fourth proportional to 63,390.61, 87,498.48 and 36,550.99 is: 50,451.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,390.61 : 87,498.48 = 36,550.99 : x
  2. Step 2: Convert to fraction form
    63,390.61/87,498.48 = 36,550.99/x
  3. Step 3: Cross multiply
    63,390.61x = 87,498.48 × 36,550.99
  4. Step 4: Simplify right side
    63,390.61x = 3,198,156,067.50
  5. Step 5: Solve for x
    x = 3,198,156,067.50/63,390.61
  6. Step 6: Final answer
    x = 50,451.57

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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.