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Finding the Third Proportional to 3,693 and 4,485

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Solution

The third proportional to 3,693 and 4,485 is: 5,446.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,693 : 4,485 = 4,485 : x
  2. Step 2: Convert to fraction form
    3,693/4,485 = 4,485/x
  3. Step 3: Cross multiply
    3,693x = 4,485 × 4,485
  4. Step 4: Simplify right side
    3,693x = 20,115,225
  5. Step 5: Solve for x
    x = 20,115,225/3,693
  6. Step 6: Final answer
    x = 5,446.85

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Why These Related Problems?

These problems maintain the same ratio (1.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.