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Finding the Fourth Proportional to 14,517.30, 21,800.79 and 8,927.79

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Solution

The fourth proportional to 14,517.30, 21,800.79 and 8,927.79 is: 13,406.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,517.30 : 21,800.79 = 8,927.79 : x
  2. Step 2: Convert to fraction form
    14,517.30/21,800.79 = 8,927.79/x
  3. Step 3: Cross multiply
    14,517.30x = 21,800.79 × 8,927.79
  4. Step 4: Simplify right side
    14,517.30x = 194,632,874.95
  5. Step 5: Solve for x
    x = 194,632,874.95/14,517.30
  6. Step 6: Final answer
    x = 13,406.96

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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.