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Finding the Fourth Proportional to 11.44, 15.79 and 6.26

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Solution

The fourth proportional to 11.44, 15.79 and 6.26 is: 8.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11.44 : 15.79 = 6.26 : x
  2. Step 2: Convert to fraction form
    11.44/15.79 = 6.26/x
  3. Step 3: Cross multiply
    11.44x = 15.79 × 6.26
  4. Step 4: Simplify right side
    11.44x = 98.89
  5. Step 5: Solve for x
    x = 98.89/11.44
  6. Step 6: Final answer
    x = 8.64

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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.