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Finding the Fourth Proportional to 16,616.38, 24,929.38 and 4,929.88

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Solution

The fourth proportional to 16,616.38, 24,929.38 and 4,929.88 is: 7,396.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,616.38 : 24,929.38 = 4,929.88 : x
  2. Step 2: Convert to fraction form
    16,616.38/24,929.38 = 4,929.88/x
  3. Step 3: Cross multiply
    16,616.38x = 24,929.38 × 4,929.88
  4. Step 4: Simplify right side
    16,616.38x = 122,898,851.87
  5. Step 5: Solve for x
    x = 122,898,851.87/16,616.38
  6. Step 6: Final answer
    x = 7,396.25

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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.