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Finding the Fourth Proportional to 11.92, 17.98 and 10.76

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Solution

The fourth proportional to 11.92, 17.98 and 10.76 is: 16.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11.92 : 17.98 = 10.76 : x
  2. Step 2: Convert to fraction form
    11.92/17.98 = 10.76/x
  3. Step 3: Cross multiply
    11.92x = 17.98 × 10.76
  4. Step 4: Simplify right side
    11.92x = 193.46
  5. Step 5: Solve for x
    x = 193.46/11.92
  6. Step 6: Final answer
    x = 16.23

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.