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Finding the Third Proportional to 5,211 and 6,111

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Solution

The third proportional to 5,211 and 6,111 is: 7,166.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,211 : 6,111 = 6,111 : x
  2. Step 2: Convert to fraction form
    5,211/6,111 = 6,111/x
  3. Step 3: Cross multiply
    5,211x = 6,111 × 6,111
  4. Step 4: Simplify right side
    5,211x = 37,344,321
  5. Step 5: Solve for x
    x = 37,344,321/5,211
  6. Step 6: Final answer
    x = 7,166.44

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Why These Related Problems?

These problems maintain the same ratio (1.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.