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Finding the Fourth Proportional to 11.34, 16.94 and 9.96

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Solution

The fourth proportional to 11.34, 16.94 and 9.96 is: 14.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11.34 : 16.94 = 9.96 : x
  2. Step 2: Convert to fraction form
    11.34/16.94 = 9.96/x
  3. Step 3: Cross multiply
    11.34x = 16.94 × 9.96
  4. Step 4: Simplify right side
    11.34x = 168.67
  5. Step 5: Solve for x
    x = 168.67/11.34
  6. Step 6: Final answer
    x = 14.87

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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.