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Finding the Third Proportional to 4.26 and 6.62

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Solution

The third proportional to 4.26 and 6.62 is: 10.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4.26 : 6.62 = 6.62 : x
  2. Step 2: Convert to fraction form
    4.26/6.62 = 6.62/x
  3. Step 3: Cross multiply
    4.26x = 6.62 × 6.62
  4. Step 4: Simplify right side
    4.26x = 43.84
  5. Step 5: Solve for x
    x = 43.84/4.26
  6. Step 6: Final answer
    x = 10.29

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.