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Finding the Fourth Proportional to 16,976.00, 25,470.08 and 8,658.11

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Solution

The fourth proportional to 16,976.00, 25,470.08 and 8,658.11 is: 12,990.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,976.00 : 25,470.08 = 8,658.11 : x
  2. Step 2: Convert to fraction form
    16,976.00/25,470.08 = 8,658.11/x
  3. Step 3: Cross multiply
    16,976.00x = 25,470.08 × 8,658.11
  4. Step 4: Simplify right side
    16,976.00x = 220,522,583.71
  5. Step 5: Solve for x
    x = 220,522,583.71/16,976.00
  6. Step 6: Final answer
    x = 12,990.26

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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.