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Finding the Third Proportional to 3,517 and 6,971

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Solution

The third proportional to 3,517 and 6,971 is: 13,817.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,517 : 6,971 = 6,971 : x
  2. Step 2: Convert to fraction form
    3,517/6,971 = 6,971/x
  3. Step 3: Cross multiply
    3,517x = 6,971 × 6,971
  4. Step 4: Simplify right side
    3,517x = 48,594,841
  5. Step 5: Solve for x
    x = 48,594,841/3,517
  6. Step 6: Final answer
    x = 13,817.13

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Why These Related Problems?

These problems maintain the same ratio (1.98) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.