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Finding the Fourth Proportional to 1,615.92, 2,425.08 and 1,067.88

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Solution

The fourth proportional to 1,615.92, 2,425.08 and 1,067.88 is: 1,602.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,615.92 : 2,425.08 = 1,067.88 : x
  2. Step 2: Convert to fraction form
    1,615.92/2,425.08 = 1,067.88/x
  3. Step 3: Cross multiply
    1,615.92x = 2,425.08 × 1,067.88
  4. Step 4: Simplify right side
    1,615.92x = 2,589,694.43
  5. Step 5: Solve for x
    x = 2,589,694.43/1,615.92
  6. Step 6: Final answer
    x = 1,602.61

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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.