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Finding the Fourth Proportional to 33.28, 49.96 and 22.68

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Solution

The fourth proportional to 33.28, 49.96 and 22.68 is: 34.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    33.28 : 49.96 = 22.68 : x
  2. Step 2: Convert to fraction form
    33.28/49.96 = 22.68/x
  3. Step 3: Cross multiply
    33.28x = 49.96 × 22.68
  4. Step 4: Simplify right side
    33.28x = 1,133.09
  5. Step 5: Solve for x
    x = 1,133.09/33.28
  6. Step 6: Final answer
    x = 34.05

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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.