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Finding the Fourth Proportional to 6,474.10, 9,711.15 and 6,171.70

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Solution

The fourth proportional to 6,474.10, 9,711.15 and 6,171.70 is: 9,257.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,474.10 : 9,711.15 = 6,171.70 : x
  2. Step 2: Convert to fraction form
    6,474.10/9,711.15 = 6,171.70/x
  3. Step 3: Cross multiply
    6,474.10x = 9,711.15 × 6,171.70
  4. Step 4: Simplify right side
    6,474.10x = 59,934,304.46
  5. Step 5: Solve for x
    x = 59,934,304.46/6,474.10
  6. Step 6: Final answer
    x = 9,257.55

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Similar ratio
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1.5x scale

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.