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Finding the Fourth Proportional to 54,082.76, 80,964.39 and 39,948.93

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Solution

The fourth proportional to 54,082.76, 80,964.39 and 39,948.93 is: 59,805.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,082.76 : 80,964.39 = 39,948.93 : x
  2. Step 2: Convert to fraction form
    54,082.76/80,964.39 = 39,948.93/x
  3. Step 3: Cross multiply
    54,082.76x = 80,964.39 × 39,948.93
  4. Step 4: Simplify right side
    54,082.76x = 3,234,440,898.41
  5. Step 5: Solve for x
    x = 3,234,440,898.41/54,082.76
  6. Step 6: Final answer
    x = 59,805.40

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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.