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Finding the Third Proportional to 5,446 and 8,170

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Solution

The third proportional to 5,446 and 8,170 is: 12,256.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,446 : 8,170 = 8,170 : x
  2. Step 2: Convert to fraction form
    5,446/8,170 = 8,170/x
  3. Step 3: Cross multiply
    5,446x = 8,170 × 8,170
  4. Step 4: Simplify right side
    5,446x = 66,748,900
  5. Step 5: Solve for x
    x = 66,748,900/5,446
  6. Step 6: Final answer
    x = 12,256.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.