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Finding the Fourth Proportional to 33.75, 50.61 and 10.92

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Solution

The fourth proportional to 33.75, 50.61 and 10.92 is: 16.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    33.75 : 50.61 = 10.92 : x
  2. Step 2: Convert to fraction form
    33.75/50.61 = 10.92/x
  3. Step 3: Cross multiply
    33.75x = 50.61 × 10.92
  4. Step 4: Simplify right side
    33.75x = 552.66
  5. Step 5: Solve for x
    x = 552.66/33.75
  6. Step 6: Final answer
    x = 16.38

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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.