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Finding the Fourth Proportional to 13,635.31, 20,452.97 and 4,401.31

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Solution

The fourth proportional to 13,635.31, 20,452.97 and 4,401.31 is: 6,601.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,635.31 : 20,452.97 = 4,401.31 : x
  2. Step 2: Convert to fraction form
    13,635.31/20,452.97 = 4,401.31/x
  3. Step 3: Cross multiply
    13,635.31x = 20,452.97 × 4,401.31
  4. Step 4: Simplify right side
    13,635.31x = 90,019,861.39
  5. Step 5: Solve for x
    x = 90,019,861.39/13,635.31
  6. Step 6: Final answer
    x = 6,601.97

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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.