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Finding the Third Proportional to 371 and 853

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Solution

The third proportional to 371 and 853 is: 1,961.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    371 : 853 = 853 : x
  2. Step 2: Convert to fraction form
    371/853 = 853/x
  3. Step 3: Cross multiply
    371x = 853 × 853
  4. Step 4: Simplify right side
    371x = 727,609
  5. Step 5: Solve for x
    x = 727,609/371
  6. Step 6: Final answer
    x = 1,961.21

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These problems maintain the same ratio (2.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.