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Finding the Fourth Proportional to 3,692.88, 5,540.11 and 1,060.38

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Solution

The fourth proportional to 3,692.88, 5,540.11 and 1,060.38 is: 1,590.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,692.88 : 5,540.11 = 1,060.38 : x
  2. Step 2: Convert to fraction form
    3,692.88/5,540.11 = 1,060.38/x
  3. Step 3: Cross multiply
    3,692.88x = 5,540.11 × 1,060.38
  4. Step 4: Simplify right side
    3,692.88x = 5,874,621.84
  5. Step 5: Solve for x
    x = 5,874,621.84/3,692.88
  6. Step 6: Final answer
    x = 1,590.80

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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.