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Finding the Fourth Proportional to 94.22, 141.33 and 25.73

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Solution

The fourth proportional to 94.22, 141.33 and 25.73 is: 38.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    94.22 : 141.33 = 25.73 : x
  2. Step 2: Convert to fraction form
    94.22/141.33 = 25.73/x
  3. Step 3: Cross multiply
    94.22x = 141.33 × 25.73
  4. Step 4: Simplify right side
    94.22x = 3,636.99
  5. Step 5: Solve for x
    x = 3,636.99/94.22
  6. Step 6: Final answer
    x = 38.60

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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.