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Finding the Fourth Proportional to 2,692.22, 4,035.89 and 960.44

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Solution

The fourth proportional to 2,692.22, 4,035.89 and 960.44 is: 1,439.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,692.22 : 4,035.89 = 960.44 : x
  2. Step 2: Convert to fraction form
    2,692.22/4,035.89 = 960.44/x
  3. Step 3: Cross multiply
    2,692.22x = 4,035.89 × 960.44
  4. Step 4: Simplify right side
    2,692.22x = 3,876,212.41
  5. Step 5: Solve for x
    x = 3,876,212.41/2,692.22
  6. Step 6: Final answer
    x = 1,439.79

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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.