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Finding the Fourth Proportional to 94.42, 141.62 and 25.94

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Solution

The fourth proportional to 94.42, 141.62 and 25.94 is: 38.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    94.42 : 141.62 = 25.94 : x
  2. Step 2: Convert to fraction form
    94.42/141.62 = 25.94/x
  3. Step 3: Cross multiply
    94.42x = 141.62 × 25.94
  4. Step 4: Simplify right side
    94.42x = 3,673.27
  5. Step 5: Solve for x
    x = 3,673.27/94.42
  6. Step 6: Final answer
    x = 38.90

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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.