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Finding the Fourth Proportional to 31.93, 44.08 and 22.73

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Solution

The fourth proportional to 31.93, 44.08 and 22.73 is: 31.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    31.93 : 44.08 = 22.73 : x
  2. Step 2: Convert to fraction form
    31.93/44.08 = 22.73/x
  3. Step 3: Cross multiply
    31.93x = 44.08 × 22.73
  4. Step 4: Simplify right side
    31.93x = 1,001.91
  5. Step 5: Solve for x
    x = 1,001.91/31.93
  6. Step 6: Final answer
    x = 31.38

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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.