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Finding the Fourth Proportional to 44.54, 61.46 and 28.19

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Solution

The fourth proportional to 44.54, 61.46 and 28.19 is: 38.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    44.54 : 61.46 = 28.19 : x
  2. Step 2: Convert to fraction form
    44.54/61.46 = 28.19/x
  3. Step 3: Cross multiply
    44.54x = 61.46 × 28.19
  4. Step 4: Simplify right side
    44.54x = 1,732.68
  5. Step 5: Solve for x
    x = 1,732.68/44.54
  6. Step 6: Final answer
    x = 38.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.