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Finding the Third Proportional to 69.50 and 94.13

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Solution

The third proportional to 69.50 and 94.13 is: 127.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    69.50 : 94.13 = 94.13 : x
  2. Step 2: Convert to fraction form
    69.50/94.13 = 94.13/x
  3. Step 3: Cross multiply
    69.50x = 94.13 × 94.13
  4. Step 4: Simplify right side
    69.50x = 8,859.52
  5. Step 5: Solve for x
    x = 8,859.52/69.50
  6. Step 6: Final answer
    x = 127.48

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.