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Finding the Fourth Proportional to 6,331.31, 9,496.97 and 4,218.47

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Solution

The fourth proportional to 6,331.31, 9,496.97 and 4,218.47 is: 6,327.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,331.31 : 9,496.97 = 4,218.47 : x
  2. Step 2: Convert to fraction form
    6,331.31/9,496.97 = 4,218.47/x
  3. Step 3: Cross multiply
    6,331.31x = 9,496.97 × 4,218.47
  4. Step 4: Simplify right side
    6,331.31x = 40,062,683.04
  5. Step 5: Solve for x
    x = 40,062,683.04/6,331.31
  6. Step 6: Final answer
    x = 6,327.71

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Double scale
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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.