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Finding the Fourth Proportional to 3,692.72, 5,532.92 and 2,651.15

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Solution

The fourth proportional to 3,692.72, 5,532.92 and 2,651.15 is: 3,972.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,692.72 : 5,532.92 = 2,651.15 : x
  2. Step 2: Convert to fraction form
    3,692.72/5,532.92 = 2,651.15/x
  3. Step 3: Cross multiply
    3,692.72x = 5,532.92 × 2,651.15
  4. Step 4: Simplify right side
    3,692.72x = 14,668,601.43
  5. Step 5: Solve for x
    x = 14,668,601.43/3,692.72
  6. Step 6: Final answer
    x = 3,972.31

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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.