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Finding the Third Proportional to 6,371 and 6,947

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Solution

The third proportional to 6,371 and 6,947 is: 7,575.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,371 : 6,947 = 6,947 : x
  2. Step 2: Convert to fraction form
    6,371/6,947 = 6,947/x
  3. Step 3: Cross multiply
    6,371x = 6,947 × 6,947
  4. Step 4: Simplify right side
    6,371x = 48,260,809
  5. Step 5: Solve for x
    x = 48,260,809/6,371
  6. Step 6: Final answer
    x = 7,575.08

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Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.