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Finding the Third Proportional to 347 and 860

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Solution

The third proportional to 347 and 860 is: 2,131.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    347 : 860 = 860 : x
  2. Step 2: Convert to fraction form
    347/860 = 860/x
  3. Step 3: Cross multiply
    347x = 860 × 860
  4. Step 4: Simplify right side
    347x = 739,600
  5. Step 5: Solve for x
    x = 739,600/347
  6. Step 6: Final answer
    x = 2,131.41

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These problems maintain the same ratio (2.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.