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Finding the Fourth Proportional to 49.24, 73.90 and 25.22

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Solution

The fourth proportional to 49.24, 73.90 and 25.22 is: 37.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    49.24 : 73.90 = 25.22 : x
  2. Step 2: Convert to fraction form
    49.24/73.90 = 25.22/x
  3. Step 3: Cross multiply
    49.24x = 73.90 × 25.22
  4. Step 4: Simplify right side
    49.24x = 1,863.76
  5. Step 5: Solve for x
    x = 1,863.76/49.24
  6. Step 6: Final answer
    x = 37.85

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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.