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Finding the Fourth Proportional to 11.93, 16.54 and 10.92

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Solution

The fourth proportional to 11.93, 16.54 and 10.92 is: 15.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11.93 : 16.54 = 10.92 : x
  2. Step 2: Convert to fraction form
    11.93/16.54 = 10.92/x
  3. Step 3: Cross multiply
    11.93x = 16.54 × 10.92
  4. Step 4: Simplify right side
    11.93x = 180.62
  5. Step 5: Solve for x
    x = 180.62/11.93
  6. Step 6: Final answer
    x = 15.14

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.