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Finding the Third Proportional to 814 and 1,075

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Solution

The third proportional to 814 and 1,075 is: 1,419.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    814 : 1,075 = 1,075 : x
  2. Step 2: Convert to fraction form
    814/1,075 = 1,075/x
  3. Step 3: Cross multiply
    814x = 1,075 × 1,075
  4. Step 4: Simplify right side
    814x = 1,155,625
  5. Step 5: Solve for x
    x = 1,155,625/814
  6. Step 6: Final answer
    x = 1,419.69

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Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.