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Finding the Third Proportional to 98,629 and 216,902

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Solution

The third proportional to 98,629 and 216,902 is: 477,004.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,629 : 216,902 = 216,902 : x
  2. Step 2: Convert to fraction form
    98,629/216,902 = 216,902/x
  3. Step 3: Cross multiply
    98,629x = 216,902 × 216,902
  4. Step 4: Simplify right side
    98,629x = 47,046,477,604
  5. Step 5: Solve for x
    x = 47,046,477,604/98,629
  6. Step 6: Final answer
    x = 477,004.51

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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.