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Finding the Fourth Proportional to 11.92, 16.35 and 11.26

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Solution

The fourth proportional to 11.92, 16.35 and 11.26 is: 15.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11.92 : 16.35 = 11.26 : x
  2. Step 2: Convert to fraction form
    11.92/16.35 = 11.26/x
  3. Step 3: Cross multiply
    11.92x = 16.35 × 11.26
  4. Step 4: Simplify right side
    11.92x = 184.10
  5. Step 5: Solve for x
    x = 184.10/11.92
  6. Step 6: Final answer
    x = 15.44

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.