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Finding the Third Proportional to 2,160.75 and 4,341.75

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Solution

The third proportional to 2,160.75 and 4,341.75 is: 8,724.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,160.75 : 4,341.75 = 4,341.75 : x
  2. Step 2: Convert to fraction form
    2,160.75/4,341.75 = 4,341.75/x
  3. Step 3: Cross multiply
    2,160.75x = 4,341.75 × 4,341.75
  4. Step 4: Simplify right side
    2,160.75x = 18,850,793.06
  5. Step 5: Solve for x
    x = 18,850,793.06/2,160.75
  6. Step 6: Final answer
    x = 8,724.19

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Why These Related Problems?

These problems maintain the same ratio (2.01) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.