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Finding the Third Proportional to 1,656 and 3,636

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Solution

The third proportional to 1,656 and 3,636 is: 7,983.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,656 : 3,636 = 3,636 : x
  2. Step 2: Convert to fraction form
    1,656/3,636 = 3,636/x
  3. Step 3: Cross multiply
    1,656x = 3,636 × 3,636
  4. Step 4: Simplify right side
    1,656x = 13,220,496
  5. Step 5: Solve for x
    x = 13,220,496/1,656
  6. Step 6: Final answer
    x = 7,983.39

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.