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Finding the Third Proportional to 81.94 and 193.50

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Solution

The third proportional to 81.94 and 193.50 is: 456.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    81.94 : 193.50 = 193.50 : x
  2. Step 2: Convert to fraction form
    81.94/193.50 = 193.50/x
  3. Step 3: Cross multiply
    81.94x = 193.50 × 193.50
  4. Step 4: Simplify right side
    81.94x = 37,442.25
  5. Step 5: Solve for x
    x = 37,442.25/81.94
  6. Step 6: Final answer
    x = 456.96

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.