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Finding the Fourth Proportional to 33.35, 49.88 and 28.24

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Solution

The fourth proportional to 33.35, 49.88 and 28.24 is: 42.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    33.35 : 49.88 = 28.24 : x
  2. Step 2: Convert to fraction form
    33.35/49.88 = 28.24/x
  3. Step 3: Cross multiply
    33.35x = 49.88 × 28.24
  4. Step 4: Simplify right side
    33.35x = 1,408.56
  5. Step 5: Solve for x
    x = 1,408.56/33.35
  6. Step 6: Final answer
    x = 42.24

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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.