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Finding the Fourth Proportional to 16,491.71, 24,739.87 and 5,399.27

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Solution

The fourth proportional to 16,491.71, 24,739.87 and 5,399.27 is: 8,099.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,491.71 : 24,739.87 = 5,399.27 : x
  2. Step 2: Convert to fraction form
    16,491.71/24,739.87 = 5,399.27/x
  3. Step 3: Cross multiply
    16,491.71x = 24,739.87 × 5,399.27
  4. Step 4: Simplify right side
    16,491.71x = 133,577,237.89
  5. Step 5: Solve for x
    x = 133,577,237.89/16,491.71
  6. Step 6: Final answer
    x = 8,099.66

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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.