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Finding the Third Proportional to 3,286.13 and 5,285.81

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Solution

The third proportional to 3,286.13 and 5,285.81 is: 8,502.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,286.13 : 5,285.81 = 5,285.81 : x
  2. Step 2: Convert to fraction form
    3,286.13/5,285.81 = 5,285.81/x
  3. Step 3: Cross multiply
    3,286.13x = 5,285.81 × 5,285.81
  4. Step 4: Simplify right side
    3,286.13x = 27,939,813.79
  5. Step 5: Solve for x
    x = 27,939,813.79/3,286.13
  6. Step 6: Final answer
    x = 8,502.36

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.