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Finding the Fourth Proportional to 23.96, 35.97 and 18.56

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Solution

The fourth proportional to 23.96, 35.97 and 18.56 is: 27.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    23.96 : 35.97 = 18.56 : x
  2. Step 2: Convert to fraction form
    23.96/35.97 = 18.56/x
  3. Step 3: Cross multiply
    23.96x = 35.97 × 18.56
  4. Step 4: Simplify right side
    23.96x = 667.60
  5. Step 5: Solve for x
    x = 667.60/23.96
  6. Step 6: Final answer
    x = 27.86

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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.