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Finding the Third Proportional to 13.75 and 35.26

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Solution

The third proportional to 13.75 and 35.26 is: 90.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13.75 : 35.26 = 35.26 : x
  2. Step 2: Convert to fraction form
    13.75/35.26 = 35.26/x
  3. Step 3: Cross multiply
    13.75x = 35.26 × 35.26
  4. Step 4: Simplify right side
    13.75x = 1,243.50
  5. Step 5: Solve for x
    x = 1,243.50/13.75
  6. Step 6: Final answer
    x = 90.41

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Why These Related Problems?

These problems maintain the same ratio (2.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.