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Finding the Fourth Proportional to 33.24, 49.85 and 15.23

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Solution

The fourth proportional to 33.24, 49.85 and 15.23 is: 22.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    33.24 : 49.85 = 15.23 : x
  2. Step 2: Convert to fraction form
    33.24/49.85 = 15.23/x
  3. Step 3: Cross multiply
    33.24x = 49.85 × 15.23
  4. Step 4: Simplify right side
    33.24x = 758.89
  5. Step 5: Solve for x
    x = 758.89/33.24
  6. Step 6: Final answer
    x = 22.83

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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.