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Finding the Fourth Proportional to 6,713.87, 10,071.89 and 2,819.39

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Solution

The fourth proportional to 6,713.87, 10,071.89 and 2,819.39 is: 4,229.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,713.87 : 10,071.89 = 2,819.39 : x
  2. Step 2: Convert to fraction form
    6,713.87/10,071.89 = 2,819.39/x
  3. Step 3: Cross multiply
    6,713.87x = 10,071.89 × 2,819.39
  4. Step 4: Simplify right side
    6,713.87x = 28,396,571.85
  5. Step 5: Solve for x
    x = 28,396,571.85/6,713.87
  6. Step 6: Final answer
    x = 4,229.54

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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.