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Finding the Fourth Proportional to 50.24, 74.92 and 48.44

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Solution

The fourth proportional to 50.24, 74.92 and 48.44 is: 72.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    50.24 : 74.92 = 48.44 : x
  2. Step 2: Convert to fraction form
    50.24/74.92 = 48.44/x
  3. Step 3: Cross multiply
    50.24x = 74.92 × 48.44
  4. Step 4: Simplify right side
    50.24x = 3,629.12
  5. Step 5: Solve for x
    x = 3,629.12/50.24
  6. Step 6: Final answer
    x = 72.24

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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.