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Finding the Third Proportional to 982.13 and 2,127.09

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Solution

The third proportional to 982.13 and 2,127.09 is: 4,606.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    982.13 : 2,127.09 = 2,127.09 : x
  2. Step 2: Convert to fraction form
    982.13/2,127.09 = 2,127.09/x
  3. Step 3: Cross multiply
    982.13x = 2,127.09 × 2,127.09
  4. Step 4: Simplify right side
    982.13x = 4,524,527.82
  5. Step 5: Solve for x
    x = 4,524,527.82/982.13
  6. Step 6: Final answer
    x = 4,606.88

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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.