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Finding the Third Proportional to 650.75 and 799.25

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Solution

The third proportional to 650.75 and 799.25 is: 981.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    650.75 : 799.25 = 799.25 : x
  2. Step 2: Convert to fraction form
    650.75/799.25 = 799.25/x
  3. Step 3: Cross multiply
    650.75x = 799.25 × 799.25
  4. Step 4: Simplify right side
    650.75x = 638,800.56
  5. Step 5: Solve for x
    x = 638,800.56/650.75
  6. Step 6: Final answer
    x = 981.64

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Why These Related Problems?

These problems maintain the same ratio (1.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.