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Finding the Third Proportional to 983.81 and 1,999.13

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Solution

The third proportional to 983.81 and 1,999.13 is: 4,062.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    983.81 : 1,999.13 = 1,999.13 : x
  2. Step 2: Convert to fraction form
    983.81/1,999.13 = 1,999.13/x
  3. Step 3: Cross multiply
    983.81x = 1,999.13 × 1,999.13
  4. Step 4: Simplify right side
    983.81x = 3,996,500.77
  5. Step 5: Solve for x
    x = 3,996,500.77/983.81
  6. Step 6: Final answer
    x = 4,062.26

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.