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Finding the Fourth Proportional to 12.44, 18.63 and 11.10

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Solution

The fourth proportional to 12.44, 18.63 and 11.10 is: 16.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12.44 : 18.63 = 11.10 : x
  2. Step 2: Convert to fraction form
    12.44/18.63 = 11.10/x
  3. Step 3: Cross multiply
    12.44x = 18.63 × 11.10
  4. Step 4: Simplify right side
    12.44x = 206.79
  5. Step 5: Solve for x
    x = 206.79/12.44
  6. Step 6: Final answer
    x = 16.63

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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.