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Finding the Third Proportional to 72,450 and 96,679

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Solution

The third proportional to 72,450 and 96,679 is: 129,010.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,450 : 96,679 = 96,679 : x
  2. Step 2: Convert to fraction form
    72,450/96,679 = 96,679/x
  3. Step 3: Cross multiply
    72,450x = 96,679 × 96,679
  4. Step 4: Simplify right side
    72,450x = 9,346,829,041
  5. Step 5: Solve for x
    x = 9,346,829,041/72,450
  6. Step 6: Final answer
    x = 129,010.75

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.