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Finding the Fourth Proportional to 11.02, 16.44 and 9.68

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Solution

The fourth proportional to 11.02, 16.44 and 9.68 is: 14.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11.02 : 16.44 = 9.68 : x
  2. Step 2: Convert to fraction form
    11.02/16.44 = 9.68/x
  3. Step 3: Cross multiply
    11.02x = 16.44 × 9.68
  4. Step 4: Simplify right side
    11.02x = 159.14
  5. Step 5: Solve for x
    x = 159.14/11.02
  6. Step 6: Final answer
    x = 14.44

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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.