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Finding the Third Proportional to 808 and 2,125

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Solution

The third proportional to 808 and 2,125 is: 5,588.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    808 : 2,125 = 2,125 : x
  2. Step 2: Convert to fraction form
    808/2,125 = 2,125/x
  3. Step 3: Cross multiply
    808x = 2,125 × 2,125
  4. Step 4: Simplify right side
    808x = 4,515,625
  5. Step 5: Solve for x
    x = 4,515,625/808
  6. Step 6: Final answer
    x = 5,588.64

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Why These Related Problems?

These problems maintain the same ratio (2.63) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.