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Finding the Fourth Proportional to 16.67, 25.01 and 12.14

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Solution

The fourth proportional to 16.67, 25.01 and 12.14 is: 18.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    16.67 : 25.01 = 12.14 : x
  2. Step 2: Convert to fraction form
    16.67/25.01 = 12.14/x
  3. Step 3: Cross multiply
    16.67x = 25.01 × 12.14
  4. Step 4: Simplify right side
    16.67x = 303.62
  5. Step 5: Solve for x
    x = 303.62/16.67
  6. Step 6: Final answer
    x = 18.22

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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.