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Finding the Fourth Proportional to 11.97, 17.93 and 9.27

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Solution

The fourth proportional to 11.97, 17.93 and 9.27 is: 13.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11.97 : 17.93 = 9.27 : x
  2. Step 2: Convert to fraction form
    11.97/17.93 = 9.27/x
  3. Step 3: Cross multiply
    11.97x = 17.93 × 9.27
  4. Step 4: Simplify right side
    11.97x = 166.23
  5. Step 5: Solve for x
    x = 166.23/11.97
  6. Step 6: Final answer
    x = 13.89

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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.