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Finding the Third Proportional to 69,408 and 104,625

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Solution

The third proportional to 69,408 and 104,625 is: 157,710.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,408 : 104,625 = 104,625 : x
  2. Step 2: Convert to fraction form
    69,408/104,625 = 104,625/x
  3. Step 3: Cross multiply
    69,408x = 104,625 × 104,625
  4. Step 4: Simplify right side
    69,408x = 10,946,390,625
  5. Step 5: Solve for x
    x = 10,946,390,625/69,408
  6. Step 6: Final answer
    x = 157,710.79

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.