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Finding the Fourth Proportional to 11.38, 16.95 and 11.36

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Solution

The fourth proportional to 11.38, 16.95 and 11.36 is: 16.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11.38 : 16.95 = 11.36 : x
  2. Step 2: Convert to fraction form
    11.38/16.95 = 11.36/x
  3. Step 3: Cross multiply
    11.38x = 16.95 × 11.36
  4. Step 4: Simplify right side
    11.38x = 192.47
  5. Step 5: Solve for x
    x = 192.47/11.38
  6. Step 6: Final answer
    x = 16.92

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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.