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Finding the Third Proportional to 3,690.56 and 8,073.11

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Solution

The third proportional to 3,690.56 and 8,073.11 is: 17,659.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,690.56 : 8,073.11 = 8,073.11 : x
  2. Step 2: Convert to fraction form
    3,690.56/8,073.11 = 8,073.11/x
  3. Step 3: Cross multiply
    3,690.56x = 8,073.11 × 8,073.11
  4. Step 4: Simplify right side
    3,690.56x = 65,175,031.91
  5. Step 5: Solve for x
    x = 65,175,031.91/3,690.56
  6. Step 6: Final answer
    x = 17,659.92

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.