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Finding the Third Proportional to 98,624 and 215,661

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Solution

The third proportional to 98,624 and 215,661 is: 471,585.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,624 : 215,661 = 215,661 : x
  2. Step 2: Convert to fraction form
    98,624/215,661 = 215,661/x
  3. Step 3: Cross multiply
    98,624x = 215,661 × 215,661
  4. Step 4: Simplify right side
    98,624x = 46,509,666,921
  5. Step 5: Solve for x
    x = 46,509,666,921/98,624
  6. Step 6: Final answer
    x = 471,585.69

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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.