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Finding the Fourth Proportional to 49.38, 73.62 and 49.26

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Solution

The fourth proportional to 49.38, 73.62 and 49.26 is: 73.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    49.38 : 73.62 = 49.26 : x
  2. Step 2: Convert to fraction form
    49.38/73.62 = 49.26/x
  3. Step 3: Cross multiply
    49.38x = 73.62 × 49.26
  4. Step 4: Simplify right side
    49.38x = 3,626.52
  5. Step 5: Solve for x
    x = 3,626.52/49.38
  6. Step 6: Final answer
    x = 73.44

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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.