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Finding the Fourth Proportional to 3,338.92, 5,008.08 and 873.76

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Solution

The fourth proportional to 3,338.92, 5,008.08 and 873.76 is: 1,310.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,338.92 : 5,008.08 = 873.76 : x
  2. Step 2: Convert to fraction form
    3,338.92/5,008.08 = 873.76/x
  3. Step 3: Cross multiply
    3,338.92x = 5,008.08 × 873.76
  4. Step 4: Simplify right side
    3,338.92x = 4,375,859.98
  5. Step 5: Solve for x
    x = 4,375,859.98/3,338.92
  6. Step 6: Final answer
    x = 1,310.56

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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.