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Finding the Fourth Proportional to 11.96, 16.54 and 10.18

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Solution

The fourth proportional to 11.96, 16.54 and 10.18 is: 14.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11.96 : 16.54 = 10.18 : x
  2. Step 2: Convert to fraction form
    11.96/16.54 = 10.18/x
  3. Step 3: Cross multiply
    11.96x = 16.54 × 10.18
  4. Step 4: Simplify right side
    11.96x = 168.28
  5. Step 5: Solve for x
    x = 168.28/11.96
  6. Step 6: Final answer
    x = 14.07

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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.