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Finding the Fourth Proportional to 16.11, 24.16 and 7.54

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Solution

The fourth proportional to 16.11, 24.16 and 7.54 is: 11.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    16.11 : 24.16 = 7.54 : x
  2. Step 2: Convert to fraction form
    16.11/24.16 = 7.54/x
  3. Step 3: Cross multiply
    16.11x = 24.16 × 7.54
  4. Step 4: Simplify right side
    16.11x = 182.07
  5. Step 5: Solve for x
    x = 182.07/16.11
  6. Step 6: Final answer
    x = 11.31

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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.