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Finding the Fourth Proportional to 16.12, 24.31 and 14.66

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Solution

The fourth proportional to 16.12, 24.31 and 14.66 is: 22.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    16.12 : 24.31 = 14.66 : x
  2. Step 2: Convert to fraction form
    16.12/24.31 = 14.66/x
  3. Step 3: Cross multiply
    16.12x = 24.31 × 14.66
  4. Step 4: Simplify right side
    16.12x = 356.23
  5. Step 5: Solve for x
    x = 356.23/16.12
  6. Step 6: Final answer
    x = 22.10

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.