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Finding the Fourth Proportional to 3.67, 5.50 and 2.33

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Solution

The fourth proportional to 3.67, 5.50 and 2.33 is: 3.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3.67 : 5.50 = 2.33 : x
  2. Step 2: Convert to fraction form
    3.67/5.50 = 2.33/x
  3. Step 3: Cross multiply
    3.67x = 5.50 × 2.33
  4. Step 4: Simplify right side
    3.67x = 12.82
  5. Step 5: Solve for x
    x = 12.82/3.67
  6. Step 6: Final answer
    x = 3.49

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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.