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Finding the Fourth Proportional to 23.14, 34.73 and 11.73

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Solution

The fourth proportional to 23.14, 34.73 and 11.73 is: 17.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    23.14 : 34.73 = 11.73 : x
  2. Step 2: Convert to fraction form
    23.14/34.73 = 11.73/x
  3. Step 3: Cross multiply
    23.14x = 34.73 × 11.73
  4. Step 4: Simplify right side
    23.14x = 407.38
  5. Step 5: Solve for x
    x = 407.38/23.14
  6. Step 6: Final answer
    x = 17.61

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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.