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Finding the Fourth Proportional to 16.84, 23.24 and 12

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Solution

The fourth proportional to 16.84, 23.24 and 12 is: 16.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    16.84 : 23.24 = 12 : x
  2. Step 2: Convert to fraction form
    16.84/23.24 = 12/x
  3. Step 3: Cross multiply
    16.84x = 23.24 × 12
  4. Step 4: Simplify right side
    16.84x = 278.88
  5. Step 5: Solve for x
    x = 278.88/16.84
  6. Step 6: Final answer
    x = 16.56

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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.