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Finding the Fourth Proportional to 23.91, 35.85 and 9.66

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Solution

The fourth proportional to 23.91, 35.85 and 9.66 is: 14.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    23.91 : 35.85 = 9.66 : x
  2. Step 2: Convert to fraction form
    23.91/35.85 = 9.66/x
  3. Step 3: Cross multiply
    23.91x = 35.85 × 9.66
  4. Step 4: Simplify right side
    23.91x = 346.31
  5. Step 5: Solve for x
    x = 346.31/23.91
  6. Step 6: Final answer
    x = 14.48

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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.