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Finding the Third Proportional to 84.94 and 127.22

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Solution

The third proportional to 84.94 and 127.22 is: 190.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    84.94 : 127.22 = 127.22 : x
  2. Step 2: Convert to fraction form
    84.94/127.22 = 127.22/x
  3. Step 3: Cross multiply
    84.94x = 127.22 × 127.22
  4. Step 4: Simplify right side
    84.94x = 16,184.61
  5. Step 5: Solve for x
    x = 16,184.61/84.94
  6. Step 6: Final answer
    x = 190.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.