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Finding the Fourth Proportional to 44.20, 60.96 and 36

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Solution

The fourth proportional to 44.20, 60.96 and 36 is: 49.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    44.20 : 60.96 = 36 : x
  2. Step 2: Convert to fraction form
    44.20/60.96 = 36/x
  3. Step 3: Cross multiply
    44.20x = 60.96 × 36
  4. Step 4: Simplify right side
    44.20x = 2,194.56
  5. Step 5: Solve for x
    x = 2,194.56/44.20
  6. Step 6: Final answer
    x = 49.65

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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.