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Finding the Third Proportional to 982.50 and 2,517

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Solution

The third proportional to 982.50 and 2,517 is: 6,448.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    982.50 : 2,517 = 2,517 : x
  2. Step 2: Convert to fraction form
    982.50/2,517 = 2,517/x
  3. Step 3: Cross multiply
    982.50x = 2,517 × 2,517
  4. Step 4: Simplify right side
    982.50x = 6,335,289
  5. Step 5: Solve for x
    x = 6,335,289/982.50
  6. Step 6: Final answer
    x = 6,448.13

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Why These Related Problems?

These problems maintain the same ratio (2.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.