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Finding the Fourth Proportional to 11.68, 16.12 and 10.60

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Solution

The fourth proportional to 11.68, 16.12 and 10.60 is: 14.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11.68 : 16.12 = 10.60 : x
  2. Step 2: Convert to fraction form
    11.68/16.12 = 10.60/x
  3. Step 3: Cross multiply
    11.68x = 16.12 × 10.60
  4. Step 4: Simplify right side
    11.68x = 170.87
  5. Step 5: Solve for x
    x = 170.87/11.68
  6. Step 6: Final answer
    x = 14.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.