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Finding the Third Proportional to 98,634 and 215,718

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Solution

The third proportional to 98,634 and 215,718 is: 471,787.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,634 : 215,718 = 215,718 : x
  2. Step 2: Convert to fraction form
    98,634/215,718 = 215,718/x
  3. Step 3: Cross multiply
    98,634x = 215,718 × 215,718
  4. Step 4: Simplify right side
    98,634x = 46,534,255,524
  5. Step 5: Solve for x
    x = 46,534,255,524/98,634
  6. Step 6: Final answer
    x = 471,787.17

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.