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Finding the Third Proportional to 799.50 and 885

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Solution

The third proportional to 799.50 and 885 is: 979.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    799.50 : 885 = 885 : x
  2. Step 2: Convert to fraction form
    799.50/885 = 885/x
  3. Step 3: Cross multiply
    799.50x = 885 × 885
  4. Step 4: Simplify right side
    799.50x = 783,225
  5. Step 5: Solve for x
    x = 783,225/799.50
  6. Step 6: Final answer
    x = 979.64

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Why These Related Problems?

These problems maintain the same ratio (1.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.