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Finding the Third Proportional to 997 and 2,185

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Solution

The third proportional to 997 and 2,185 is: 4,788.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    997 : 2,185 = 2,185 : x
  2. Step 2: Convert to fraction form
    997/2,185 = 2,185/x
  3. Step 3: Cross multiply
    997x = 2,185 × 2,185
  4. Step 4: Simplify right side
    997x = 4,774,225
  5. Step 5: Solve for x
    x = 4,774,225/997
  6. Step 6: Final answer
    x = 4,788.59

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.