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Finding the Fourth Proportional to 14.67, 22.01 and 12.43

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Solution

The fourth proportional to 14.67, 22.01 and 12.43 is: 18.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14.67 : 22.01 = 12.43 : x
  2. Step 2: Convert to fraction form
    14.67/22.01 = 12.43/x
  3. Step 3: Cross multiply
    14.67x = 22.01 × 12.43
  4. Step 4: Simplify right side
    14.67x = 273.58
  5. Step 5: Solve for x
    x = 273.58/14.67
  6. Step 6: Final answer
    x = 18.65

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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.