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Finding the Fourth Proportional to 49.82, 74.76 and 33.75

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Solution

The fourth proportional to 49.82, 74.76 and 33.75 is: 50.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    49.82 : 74.76 = 33.75 : x
  2. Step 2: Convert to fraction form
    49.82/74.76 = 33.75/x
  3. Step 3: Cross multiply
    49.82x = 74.76 × 33.75
  4. Step 4: Simplify right side
    49.82x = 2,523.02
  5. Step 5: Solve for x
    x = 2,523.02/49.82
  6. Step 6: Final answer
    x = 50.65

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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.