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Finding the Fourth Proportional to 4,949.92, 7,424.19 and 1,251.92

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Solution

The fourth proportional to 4,949.92, 7,424.19 and 1,251.92 is: 1,877.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,949.92 : 7,424.19 = 1,251.92 : x
  2. Step 2: Convert to fraction form
    4,949.92/7,424.19 = 1,251.92/x
  3. Step 3: Cross multiply
    4,949.92x = 7,424.19 × 1,251.92
  4. Step 4: Simplify right side
    4,949.92x = 9,294,491.94
  5. Step 5: Solve for x
    x = 9,294,491.94/4,949.92
  6. Step 6: Final answer
    x = 1,877.71

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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.