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Finding the Fourth Proportional to 33.92, 50.91 and 15.92

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Solution

The fourth proportional to 33.92, 50.91 and 15.92 is: 23.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    33.92 : 50.91 = 15.92 : x
  2. Step 2: Convert to fraction form
    33.92/50.91 = 15.92/x
  3. Step 3: Cross multiply
    33.92x = 50.91 × 15.92
  4. Step 4: Simplify right side
    33.92x = 810.49
  5. Step 5: Solve for x
    x = 810.49/33.92
  6. Step 6: Final answer
    x = 23.89

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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.