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Finding the Third Proportional to 837.84 and 1,692.56

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Solution

The third proportional to 837.84 and 1,692.56 is: 3,419.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    837.84 : 1,692.56 = 1,692.56 : x
  2. Step 2: Convert to fraction form
    837.84/1,692.56 = 1,692.56/x
  3. Step 3: Cross multiply
    837.84x = 1,692.56 × 1,692.56
  4. Step 4: Simplify right side
    837.84x = 2,864,767.82
  5. Step 5: Solve for x
    x = 2,864,767.82/837.84
  6. Step 6: Final answer
    x = 3,419.21

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Why These Related Problems?

These problems maintain the same ratio (2.02) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.