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Finding the Fourth Proportional to 16,974.66, 25,476.03 and 8,660.82

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Solution

The fourth proportional to 16,974.66, 25,476.03 and 8,660.82 is: 12,998.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,974.66 : 25,476.03 = 8,660.82 : x
  2. Step 2: Convert to fraction form
    16,974.66/25,476.03 = 8,660.82/x
  3. Step 3: Cross multiply
    16,974.66x = 25,476.03 × 8,660.82
  4. Step 4: Simplify right side
    16,974.66x = 220,643,310.14
  5. Step 5: Solve for x
    x = 220,643,310.14/16,974.66
  6. Step 6: Final answer
    x = 12,998.39

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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.