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Finding the Fourth Proportional to 49.52, 74.14 and 33.22

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Solution

The fourth proportional to 49.52, 74.14 and 33.22 is: 49.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    49.52 : 74.14 = 33.22 : x
  2. Step 2: Convert to fraction form
    49.52/74.14 = 33.22/x
  3. Step 3: Cross multiply
    49.52x = 74.14 × 33.22
  4. Step 4: Simplify right side
    49.52x = 2,462.93
  5. Step 5: Solve for x
    x = 2,462.93/49.52
  6. Step 6: Final answer
    x = 49.74

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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.