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Finding the Third Proportional to 3,817.13 and 8,320.22

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Solution

The third proportional to 3,817.13 and 8,320.22 is: 18,135.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,817.13 : 8,320.22 = 8,320.22 : x
  2. Step 2: Convert to fraction form
    3,817.13/8,320.22 = 8,320.22/x
  3. Step 3: Cross multiply
    3,817.13x = 8,320.22 × 8,320.22
  4. Step 4: Simplify right side
    3,817.13x = 69,226,040.05
  5. Step 5: Solve for x
    x = 69,226,040.05/3,817.13
  6. Step 6: Final answer
    x = 18,135.65

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.