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Finding the Fourth Proportional to 16,479.63, 24,723.09 and 4,791.87

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Solution

The fourth proportional to 16,479.63, 24,723.09 and 4,791.87 is: 7,188.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,479.63 : 24,723.09 = 4,791.87 : x
  2. Step 2: Convert to fraction form
    16,479.63/24,723.09 = 4,791.87/x
  3. Step 3: Cross multiply
    16,479.63x = 24,723.09 × 4,791.87
  4. Step 4: Simplify right side
    16,479.63x = 118,469,833.28
  5. Step 5: Solve for x
    x = 118,469,833.28/16,479.63
  6. Step 6: Final answer
    x = 7,188.86

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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.