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Finding the Third Proportional to 1,692.56 and 3,682.13

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Solution

The third proportional to 1,692.56 and 3,682.13 is: 8,010.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,692.56 : 3,682.13 = 3,682.13 : x
  2. Step 2: Convert to fraction form
    1,692.56/3,682.13 = 3,682.13/x
  3. Step 3: Cross multiply
    1,692.56x = 3,682.13 × 3,682.13
  4. Step 4: Simplify right side
    1,692.56x = 13,558,044.52
  5. Step 5: Solve for x
    x = 13,558,044.52/1,692.56
  6. Step 6: Final answer
    x = 8,010.37

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.