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Finding the Third Proportional to 67,291 and 104,487

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Solution

The third proportional to 67,291 and 104,487 is: 162,243.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,291 : 104,487 = 104,487 : x
  2. Step 2: Convert to fraction form
    67,291/104,487 = 104,487/x
  3. Step 3: Cross multiply
    67,291x = 104,487 × 104,487
  4. Step 4: Simplify right side
    67,291x = 10,917,533,169
  5. Step 5: Solve for x
    x = 10,917,533,169/67,291
  6. Step 6: Final answer
    x = 162,243.59

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.