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Finding the Fourth Proportional to 8,877.65, 12,251.12 and 4,898.66

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Solution

The fourth proportional to 8,877.65, 12,251.12 and 4,898.66 is: 6,760.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,877.65 : 12,251.12 = 4,898.66 : x
  2. Step 2: Convert to fraction form
    8,877.65/12,251.12 = 4,898.66/x
  3. Step 3: Cross multiply
    8,877.65x = 12,251.12 × 4,898.66
  4. Step 4: Simplify right side
    8,877.65x = 60,013,985.75
  5. Step 5: Solve for x
    x = 60,013,985.75/8,877.65
  6. Step 6: Final answer
    x = 6,760.12

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Why These Related Problems?

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