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Finding the Third Proportional to 244.25 and 515.75

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Solution

The third proportional to 244.25 and 515.75 is: 1,089.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    244.25 : 515.75 = 515.75 : x
  2. Step 2: Convert to fraction form
    244.25/515.75 = 515.75/x
  3. Step 3: Cross multiply
    244.25x = 515.75 × 515.75
  4. Step 4: Simplify right side
    244.25x = 265,998.06
  5. Step 5: Solve for x
    x = 265,998.06/244.25
  6. Step 6: Final answer
    x = 1,089.04

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.