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Finding the Fourth Proportional to 3,335.64, 5,003.72 and 1,949.12

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Solution

The fourth proportional to 3,335.64, 5,003.72 and 1,949.12 is: 2,923.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,335.64 : 5,003.72 = 1,949.12 : x
  2. Step 2: Convert to fraction form
    3,335.64/5,003.72 = 1,949.12/x
  3. Step 3: Cross multiply
    3,335.64x = 5,003.72 × 1,949.12
  4. Step 4: Simplify right side
    3,335.64x = 9,752,850.73
  5. Step 5: Solve for x
    x = 9,752,850.73/3,335.64
  6. Step 6: Final answer
    x = 2,923.83

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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.