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Finding the Third Proportional to 6,245 and 13,407

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Solution

The third proportional to 6,245 and 13,407 is: 28,782.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,245 : 13,407 = 13,407 : x
  2. Step 2: Convert to fraction form
    6,245/13,407 = 13,407/x
  3. Step 3: Cross multiply
    6,245x = 13,407 × 13,407
  4. Step 4: Simplify right side
    6,245x = 179,747,649
  5. Step 5: Solve for x
    x = 179,747,649/6,245
  6. Step 6: Final answer
    x = 28,782.65

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.