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Finding the Fourth Proportional to 49.67, 73.92 and 49.52

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Solution

The fourth proportional to 49.67, 73.92 and 49.52 is: 73.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    49.67 : 73.92 = 49.52 : x
  2. Step 2: Convert to fraction form
    49.67/73.92 = 49.52/x
  3. Step 3: Cross multiply
    49.67x = 73.92 × 49.52
  4. Step 4: Simplify right side
    49.67x = 3,660.02
  5. Step 5: Solve for x
    x = 3,660.02/49.67
  6. Step 6: Final answer
    x = 73.69

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.