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Finding the Third Proportional to 499.75 and 826.75

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Solution

The third proportional to 499.75 and 826.75 is: 1,367.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    499.75 : 826.75 = 826.75 : x
  2. Step 2: Convert to fraction form
    499.75/826.75 = 826.75/x
  3. Step 3: Cross multiply
    499.75x = 826.75 × 826.75
  4. Step 4: Simplify right side
    499.75x = 683,515.56
  5. Step 5: Solve for x
    x = 683,515.56/499.75
  6. Step 6: Final answer
    x = 1,367.71

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Why These Related Problems?

These problems maintain the same ratio (1.65) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.