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Finding the Fourth Proportional to 3,791.70, 5,687.55 and 2,063.70

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Solution

The fourth proportional to 3,791.70, 5,687.55 and 2,063.70 is: 3,095.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,791.70 : 5,687.55 = 2,063.70 : x
  2. Step 2: Convert to fraction form
    3,791.70/5,687.55 = 2,063.70/x
  3. Step 3: Cross multiply
    3,791.70x = 5,687.55 × 2,063.70
  4. Step 4: Simplify right side
    3,791.70x = 11,737,396.94
  5. Step 5: Solve for x
    x = 11,737,396.94/3,791.70
  6. Step 6: Final answer
    x = 3,095.55

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1.5x scale

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.