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Finding the Third Proportional to 767.25 and 1,664.16

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Solution

The third proportional to 767.25 and 1,664.16 is: 3,609.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    767.25 : 1,664.16 = 1,664.16 : x
  2. Step 2: Convert to fraction form
    767.25/1,664.16 = 1,664.16/x
  3. Step 3: Cross multiply
    767.25x = 1,664.16 × 1,664.16
  4. Step 4: Simplify right side
    767.25x = 2,769,416.02
  5. Step 5: Solve for x
    x = 2,769,416.02/767.25
  6. Step 6: Final answer
    x = 3,609.54

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.