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Finding the Third Proportional to 82,947 and 125,019

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Solution

The third proportional to 82,947 and 125,019 is: 188,430.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,947 : 125,019 = 125,019 : x
  2. Step 2: Convert to fraction form
    82,947/125,019 = 125,019/x
  3. Step 3: Cross multiply
    82,947x = 125,019 × 125,019
  4. Step 4: Simplify right side
    82,947x = 15,629,750,361
  5. Step 5: Solve for x
    x = 15,629,750,361/82,947
  6. Step 6: Final answer
    x = 188,430.57

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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.