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Finding the Fourth Proportional to 11.24, 16.75 and 11.19

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Solution

The fourth proportional to 11.24, 16.75 and 11.19 is: 16.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11.24 : 16.75 = 11.19 : x
  2. Step 2: Convert to fraction form
    11.24/16.75 = 11.19/x
  3. Step 3: Cross multiply
    11.24x = 16.75 × 11.19
  4. Step 4: Simplify right side
    11.24x = 187.45
  5. Step 5: Solve for x
    x = 187.45/11.24
  6. Step 6: Final answer
    x = 16.68

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.