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Finding the Fourth Proportional to 33.27, 49.89 and 11.58

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Solution

The fourth proportional to 33.27, 49.89 and 11.58 is: 17.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    33.27 : 49.89 = 11.58 : x
  2. Step 2: Convert to fraction form
    33.27/49.89 = 11.58/x
  3. Step 3: Cross multiply
    33.27x = 49.89 × 11.58
  4. Step 4: Simplify right side
    33.27x = 577.73
  5. Step 5: Solve for x
    x = 577.73/33.27
  6. Step 6: Final answer
    x = 17.36

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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.