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Finding the Third Proportional to 999.56 and 2,198.25

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Solution

The third proportional to 999.56 and 2,198.25 is: 4,834.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    999.56 : 2,198.25 = 2,198.25 : x
  2. Step 2: Convert to fraction form
    999.56/2,198.25 = 2,198.25/x
  3. Step 3: Cross multiply
    999.56x = 2,198.25 × 2,198.25
  4. Step 4: Simplify right side
    999.56x = 4,832,303.06
  5. Step 5: Solve for x
    x = 4,832,303.06/999.56
  6. Step 6: Final answer
    x = 4,834.42

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.