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Finding the Fourth Proportional to 49.72, 74.50 and 29.44

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Solution

The fourth proportional to 49.72, 74.50 and 29.44 is: 44.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    49.72 : 74.50 = 29.44 : x
  2. Step 2: Convert to fraction form
    49.72/74.50 = 29.44/x
  3. Step 3: Cross multiply
    49.72x = 74.50 × 29.44
  4. Step 4: Simplify right side
    49.72x = 2,193.28
  5. Step 5: Solve for x
    x = 2,193.28/49.72
  6. Step 6: Final answer
    x = 44.11

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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.