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Finding the Fourth Proportional to 33.11, 49.64 and 15.97

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Solution

The fourth proportional to 33.11, 49.64 and 15.97 is: 23.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    33.11 : 49.64 = 15.97 : x
  2. Step 2: Convert to fraction form
    33.11/49.64 = 15.97/x
  3. Step 3: Cross multiply
    33.11x = 49.64 × 15.97
  4. Step 4: Simplify right side
    33.11x = 792.82
  5. Step 5: Solve for x
    x = 792.82/33.11
  6. Step 6: Final answer
    x = 23.95

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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.