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Finding the Fourth Proportional to 11.24, 16.97 and 11.06

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Solution

The fourth proportional to 11.24, 16.97 and 11.06 is: 16.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11.24 : 16.97 = 11.06 : x
  2. Step 2: Convert to fraction form
    11.24/16.97 = 11.06/x
  3. Step 3: Cross multiply
    11.24x = 16.97 × 11.06
  4. Step 4: Simplify right side
    11.24x = 187.69
  5. Step 5: Solve for x
    x = 187.69/11.24
  6. Step 6: Final answer
    x = 16.70

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.