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Finding the Third Proportional to 98,662 and 213,929

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Solution

The third proportional to 98,662 and 213,929 is: 463,862.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,662 : 213,929 = 213,929 : x
  2. Step 2: Convert to fraction form
    98,662/213,929 = 213,929/x
  3. Step 3: Cross multiply
    98,662x = 213,929 × 213,929
  4. Step 4: Simplify right side
    98,662x = 45,765,617,041
  5. Step 5: Solve for x
    x = 45,765,617,041/98,662
  6. Step 6: Final answer
    x = 463,862.65

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.