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Finding the Fourth Proportional to 44.33, 61.16 and 38.86

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Solution

The fourth proportional to 44.33, 61.16 and 38.86 is: 53.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    44.33 : 61.16 = 38.86 : x
  2. Step 2: Convert to fraction form
    44.33/61.16 = 38.86/x
  3. Step 3: Cross multiply
    44.33x = 61.16 × 38.86
  4. Step 4: Simplify right side
    44.33x = 2,376.68
  5. Step 5: Solve for x
    x = 2,376.68/44.33
  6. Step 6: Final answer
    x = 53.61

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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.