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Finding the Third Proportional to 53,736 and 83,412

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Solution

The third proportional to 53,736 and 83,412 is: 129,476.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,736 : 83,412 = 83,412 : x
  2. Step 2: Convert to fraction form
    53,736/83,412 = 83,412/x
  3. Step 3: Cross multiply
    53,736x = 83,412 × 83,412
  4. Step 4: Simplify right side
    53,736x = 6,957,561,744
  5. Step 5: Solve for x
    x = 6,957,561,744/53,736
  6. Step 6: Final answer
    x = 129,476.73

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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.