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Finding the Fourth Proportional to 3,768.87, 5,651.24 and 2,993.84

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Solution

The fourth proportional to 3,768.87, 5,651.24 and 2,993.84 is: 4,489.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,768.87 : 5,651.24 = 2,993.84 : x
  2. Step 2: Convert to fraction form
    3,768.87/5,651.24 = 2,993.84/x
  3. Step 3: Cross multiply
    3,768.87x = 5,651.24 × 2,993.84
  4. Step 4: Simplify right side
    3,768.87x = 16,918,865.14
  5. Step 5: Solve for x
    x = 16,918,865.14/3,768.87
  6. Step 6: Final answer
    x = 4,489.11

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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.