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Finding the Fourth Proportional to 6,694.62, 9,239.57 and 3,861.46

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Solution

The fourth proportional to 6,694.62, 9,239.57 and 3,861.46 is: 5,329.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,694.62 : 9,239.57 = 3,861.46 : x
  2. Step 2: Convert to fraction form
    6,694.62/9,239.57 = 3,861.46/x
  3. Step 3: Cross multiply
    6,694.62x = 9,239.57 × 3,861.46
  4. Step 4: Simplify right side
    6,694.62x = 35,678,229.97
  5. Step 5: Solve for x
    x = 35,678,229.97/6,694.62
  6. Step 6: Final answer
    x = 5,329.39

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1.5x scale

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.