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Finding the Third Proportional to 2,164.22 and 2,813.48

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Solution

The third proportional to 2,164.22 and 2,813.48 is: 3,657.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,164.22 : 2,813.48 = 2,813.48 : x
  2. Step 2: Convert to fraction form
    2,164.22/2,813.48 = 2,813.48/x
  3. Step 3: Cross multiply
    2,164.22x = 2,813.48 × 2,813.48
  4. Step 4: Simplify right side
    2,164.22x = 7,915,694.33
  5. Step 5: Solve for x
    x = 7,915,694.33/2,164.22
  6. Step 6: Final answer
    x = 3,657.53

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Why These Related Problems?

These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.