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Finding the Third Proportional to 84,891 and 186,630

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Solution

The third proportional to 84,891 and 186,630 is: 410,299.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,891 : 186,630 = 186,630 : x
  2. Step 2: Convert to fraction form
    84,891/186,630 = 186,630/x
  3. Step 3: Cross multiply
    84,891x = 186,630 × 186,630
  4. Step 4: Simplify right side
    84,891x = 34,830,756,900
  5. Step 5: Solve for x
    x = 34,830,756,900/84,891
  6. Step 6: Final answer
    x = 410,299.76

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.