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Finding the Fourth Proportional to 4,948.62, 7,423.17 and 2,755.71

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Solution

The fourth proportional to 4,948.62, 7,423.17 and 2,755.71 is: 4,133.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,948.62 : 7,423.17 = 2,755.71 : x
  2. Step 2: Convert to fraction form
    4,948.62/7,423.17 = 2,755.71/x
  3. Step 3: Cross multiply
    4,948.62x = 7,423.17 × 2,755.71
  4. Step 4: Simplify right side
    4,948.62x = 20,456,103.80
  5. Step 5: Solve for x
    x = 20,456,103.80/4,948.62
  6. Step 6: Final answer
    x = 4,133.70

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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.