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Finding the Third Proportional to 3,693.56 and 8,207.34

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Solution

The third proportional to 3,693.56 and 8,207.34 is: 18,237.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,693.56 : 8,207.34 = 8,207.34 : x
  2. Step 2: Convert to fraction form
    3,693.56/8,207.34 = 8,207.34/x
  3. Step 3: Cross multiply
    3,693.56x = 8,207.34 × 8,207.34
  4. Step 4: Simplify right side
    3,693.56x = 67,360,491.43
  5. Step 5: Solve for x
    x = 67,360,491.43/3,693.56
  6. Step 6: Final answer
    x = 18,237.27

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.