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Finding the Third Proportional to 3,822.56 and 8,203.13

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Solution

The third proportional to 3,822.56 and 8,203.13 is: 17,603.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,822.56 : 8,203.13 = 8,203.13 : x
  2. Step 2: Convert to fraction form
    3,822.56/8,203.13 = 8,203.13/x
  3. Step 3: Cross multiply
    3,822.56x = 8,203.13 × 8,203.13
  4. Step 4: Simplify right side
    3,822.56x = 67,291,259.77
  5. Step 5: Solve for x
    x = 67,291,259.77/3,822.56
  6. Step 6: Final answer
    x = 17,603.70

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.