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Finding the Fourth Proportional to 2,692.72, 4,040.92 and 1,049.27

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Solution

The fourth proportional to 2,692.72, 4,040.92 and 1,049.27 is: 1,574.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,692.72 : 4,040.92 = 1,049.27 : x
  2. Step 2: Convert to fraction form
    2,692.72/4,040.92 = 1,049.27/x
  3. Step 3: Cross multiply
    2,692.72x = 4,040.92 × 1,049.27
  4. Step 4: Simplify right side
    2,692.72x = 4,240,016.13
  5. Step 5: Solve for x
    x = 4,240,016.13/2,692.72
  6. Step 6: Final answer
    x = 1,574.62

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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.