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Finding the Fourth Proportional to 16.12, 24.16 and 8.52

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Solution

The fourth proportional to 16.12, 24.16 and 8.52 is: 12.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    16.12 : 24.16 = 8.52 : x
  2. Step 2: Convert to fraction form
    16.12/24.16 = 8.52/x
  3. Step 3: Cross multiply
    16.12x = 24.16 × 8.52
  4. Step 4: Simplify right side
    16.12x = 205.84
  5. Step 5: Solve for x
    x = 205.84/16.12
  6. Step 6: Final answer
    x = 12.77

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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.