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Finding the Fourth Proportional to 16.13, 22.26 and 10.68

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Solution

The fourth proportional to 16.13, 22.26 and 10.68 is: 14.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    16.13 : 22.26 = 10.68 : x
  2. Step 2: Convert to fraction form
    16.13/22.26 = 10.68/x
  3. Step 3: Cross multiply
    16.13x = 22.26 × 10.68
  4. Step 4: Simplify right side
    16.13x = 237.74
  5. Step 5: Solve for x
    x = 237.74/16.13
  6. Step 6: Final answer
    x = 14.74

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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.