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Finding the Fourth Proportional to 23.25, 32.04 and 18.62

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Solution

The fourth proportional to 23.25, 32.04 and 18.62 is: 25.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    23.25 : 32.04 = 18.62 : x
  2. Step 2: Convert to fraction form
    23.25/32.04 = 18.62/x
  3. Step 3: Cross multiply
    23.25x = 32.04 × 18.62
  4. Step 4: Simplify right side
    23.25x = 596.58
  5. Step 5: Solve for x
    x = 596.58/23.25
  6. Step 6: Final answer
    x = 25.66

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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.