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Finding the Fourth Proportional to 10.96, 16.46 and 9.68

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Solution

The fourth proportional to 10.96, 16.46 and 9.68 is: 14.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10.96 : 16.46 = 9.68 : x
  2. Step 2: Convert to fraction form
    10.96/16.46 = 9.68/x
  3. Step 3: Cross multiply
    10.96x = 16.46 × 9.68
  4. Step 4: Simplify right side
    10.96x = 159.27
  5. Step 5: Solve for x
    x = 159.27/10.96
  6. Step 6: Final answer
    x = 14.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.