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Finding the Third Proportional to 1,692.75 and 3,663

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Solution

The third proportional to 1,692.75 and 3,663 is: 7,926.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,692.75 : 3,663 = 3,663 : x
  2. Step 2: Convert to fraction form
    1,692.75/3,663 = 3,663/x
  3. Step 3: Cross multiply
    1,692.75x = 3,663 × 3,663
  4. Step 4: Simplify right side
    1,692.75x = 13,417,569
  5. Step 5: Solve for x
    x = 13,417,569/1,692.75
  6. Step 6: Final answer
    x = 7,926.49

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.