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Finding the Fourth Proportional to 8,669.52, 11,951.19 and 6,143.79

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Solution

The fourth proportional to 8,669.52, 11,951.19 and 6,143.79 is: 8,469.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,669.52 : 11,951.19 = 6,143.79 : x
  2. Step 2: Convert to fraction form
    8,669.52/11,951.19 = 6,143.79/x
  3. Step 3: Cross multiply
    8,669.52x = 11,951.19 × 6,143.79
  4. Step 4: Simplify right side
    8,669.52x = 73,425,601.61
  5. Step 5: Solve for x
    x = 73,425,601.61/8,669.52
  6. Step 6: Final answer
    x = 8,469.40

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.