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Finding the Fourth Proportional to 48,725.89, 73,082.76 and 13,668.28

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Solution

The fourth proportional to 48,725.89, 73,082.76 and 13,668.28 is: 20,500.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,725.89 : 73,082.76 = 13,668.28 : x
  2. Step 2: Convert to fraction form
    48,725.89/73,082.76 = 13,668.28/x
  3. Step 3: Cross multiply
    48,725.89x = 73,082.76 × 13,668.28
  4. Step 4: Simplify right side
    48,725.89x = 998,915,626.85
  5. Step 5: Solve for x
    x = 998,915,626.85/48,725.89
  6. Step 6: Final answer
    x = 20,500.72

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.