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Finding the Third Proportional to 6,425 and 8,637

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Solution

The third proportional to 6,425 and 8,637 is: 11,610.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,425 : 8,637 = 8,637 : x
  2. Step 2: Convert to fraction form
    6,425/8,637 = 8,637/x
  3. Step 3: Cross multiply
    6,425x = 8,637 × 8,637
  4. Step 4: Simplify right side
    6,425x = 74,597,769
  5. Step 5: Solve for x
    x = 74,597,769/6,425
  6. Step 6: Final answer
    x = 11,610.55

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.