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Finding the Fourth Proportional to 16,815.92, 25,239.46 and 8,501.82

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Solution

The fourth proportional to 16,815.92, 25,239.46 and 8,501.82 is: 12,760.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,815.92 : 25,239.46 = 8,501.82 : x
  2. Step 2: Convert to fraction form
    16,815.92/25,239.46 = 8,501.82/x
  3. Step 3: Cross multiply
    16,815.92x = 25,239.46 × 8,501.82
  4. Step 4: Simplify right side
    16,815.92x = 214,581,345.82
  5. Step 5: Solve for x
    x = 214,581,345.82/16,815.92
  6. Step 6: Final answer
    x = 12,760.61

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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.