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Finding the Fourth Proportional to 23.96, 35.90 and 18.59

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Solution

The fourth proportional to 23.96, 35.90 and 18.59 is: 27.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    23.96 : 35.90 = 18.59 : x
  2. Step 2: Convert to fraction form
    23.96/35.90 = 18.59/x
  3. Step 3: Cross multiply
    23.96x = 35.90 × 18.59
  4. Step 4: Simplify right side
    23.96x = 667.29
  5. Step 5: Solve for x
    x = 667.29/23.96
  6. Step 6: Final answer
    x = 27.85

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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.