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Finding the Fourth Proportional to 3,964.39, 5,947.42 and 1,499.16

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Solution

The fourth proportional to 3,964.39, 5,947.42 and 1,499.16 is: 2,249.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,964.39 : 5,947.42 = 1,499.16 : x
  2. Step 2: Convert to fraction form
    3,964.39/5,947.42 = 1,499.16/x
  3. Step 3: Cross multiply
    3,964.39x = 5,947.42 × 1,499.16
  4. Step 4: Simplify right side
    3,964.39x = 8,916,104.43
  5. Step 5: Solve for x
    x = 8,916,104.43/3,964.39
  6. Step 6: Final answer
    x = 2,249.05

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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.