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Finding the Fourth Proportional to 3,796.50, 5,692.38 and 1,331.56

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Solution

The fourth proportional to 3,796.50, 5,692.38 and 1,331.56 is: 1,996.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,796.50 : 5,692.38 = 1,331.56 : x
  2. Step 2: Convert to fraction form
    3,796.50/5,692.38 = 1,331.56/x
  3. Step 3: Cross multiply
    3,796.50x = 5,692.38 × 1,331.56
  4. Step 4: Simplify right side
    3,796.50x = 7,579,745.51
  5. Step 5: Solve for x
    x = 7,579,745.51/3,796.50
  6. Step 6: Final answer
    x = 1,996.51

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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.