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Finding the Fourth Proportional to 24,657.80, 36,990.56 and 8,651.73

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Solution

The fourth proportional to 24,657.80, 36,990.56 and 8,651.73 is: 12,978.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,657.80 : 36,990.56 = 8,651.73 : x
  2. Step 2: Convert to fraction form
    24,657.80/36,990.56 = 8,651.73/x
  3. Step 3: Cross multiply
    24,657.80x = 36,990.56 × 8,651.73
  4. Step 4: Simplify right side
    24,657.80x = 320,032,337.67
  5. Step 5: Solve for x
    x = 320,032,337.67/24,657.80
  6. Step 6: Final answer
    x = 12,978.95

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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.