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Finding the Fourth Proportional to 2,692.32, 4,037.68 and 960.56

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Solution

The fourth proportional to 2,692.32, 4,037.68 and 960.56 is: 1,440.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,692.32 : 4,037.68 = 960.56 : x
  2. Step 2: Convert to fraction form
    2,692.32/4,037.68 = 960.56/x
  3. Step 3: Cross multiply
    2,692.32x = 4,037.68 × 960.56
  4. Step 4: Simplify right side
    2,692.32x = 3,878,433.90
  5. Step 5: Solve for x
    x = 3,878,433.90/2,692.32
  6. Step 6: Final answer
    x = 1,440.55

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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.