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Finding the Fourth Proportional to 1,995.52, 2,753.07 and 1,155.92

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Solution

The fourth proportional to 1,995.52, 2,753.07 and 1,155.92 is: 1,594.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,995.52 : 2,753.07 = 1,155.92 : x
  2. Step 2: Convert to fraction form
    1,995.52/2,753.07 = 1,155.92/x
  3. Step 3: Cross multiply
    1,995.52x = 2,753.07 × 1,155.92
  4. Step 4: Simplify right side
    1,995.52x = 3,182,310.57
  5. Step 5: Solve for x
    x = 3,182,310.57/1,995.52
  6. Step 6: Final answer
    x = 1,594.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.