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Finding the Third Proportional to 868 and 2,290

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Solution

The third proportional to 868 and 2,290 is: 6,041.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    868 : 2,290 = 2,290 : x
  2. Step 2: Convert to fraction form
    868/2,290 = 2,290/x
  3. Step 3: Cross multiply
    868x = 2,290 × 2,290
  4. Step 4: Simplify right side
    868x = 5,244,100
  5. Step 5: Solve for x
    x = 5,244,100/868
  6. Step 6: Final answer
    x = 6,041.59

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Why These Related Problems?

These problems maintain the same ratio (2.64) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.