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Finding the Fourth Proportional to 24,369.78, 36,487.20 and 12,497.95

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Solution

The fourth proportional to 24,369.78, 36,487.20 and 12,497.95 is: 18,712.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,369.78 : 36,487.20 = 12,497.95 : x
  2. Step 2: Convert to fraction form
    24,369.78/36,487.20 = 12,497.95/x
  3. Step 3: Cross multiply
    24,369.78x = 36,487.20 × 12,497.95
  4. Step 4: Simplify right side
    24,369.78x = 456,015,201.24
  5. Step 5: Solve for x
    x = 456,015,201.24/24,369.78
  6. Step 6: Final answer
    x = 18,712.32

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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.