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Finding the Fourth Proportional to 8,711.83, 13,068.60 and 5,006.89

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Solution

The fourth proportional to 8,711.83, 13,068.60 and 5,006.89 is: 7,510.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,711.83 : 13,068.60 = 5,006.89 : x
  2. Step 2: Convert to fraction form
    8,711.83/13,068.60 = 5,006.89/x
  3. Step 3: Cross multiply
    8,711.83x = 13,068.60 × 5,006.89
  4. Step 4: Simplify right side
    8,711.83x = 65,433,042.65
  5. Step 5: Solve for x
    x = 65,433,042.65/8,711.83
  6. Step 6: Final answer
    x = 7,510.83

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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.