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Finding the Fourth Proportional to 44.72, 66.92 and 25.48

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Solution

The fourth proportional to 44.72, 66.92 and 25.48 is: 38.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    44.72 : 66.92 = 25.48 : x
  2. Step 2: Convert to fraction form
    44.72/66.92 = 25.48/x
  3. Step 3: Cross multiply
    44.72x = 66.92 × 25.48
  4. Step 4: Simplify right side
    44.72x = 1,704.83
  5. Step 5: Solve for x
    x = 1,704.83/44.72
  6. Step 6: Final answer
    x = 38.12

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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.