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Finding the Third Proportional to 886 and 2,389

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Solution

The third proportional to 886 and 2,389 is: 6,441.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    886 : 2,389 = 2,389 : x
  2. Step 2: Convert to fraction form
    886/2,389 = 2,389/x
  3. Step 3: Cross multiply
    886x = 2,389 × 2,389
  4. Step 4: Simplify right side
    886x = 5,707,321
  5. Step 5: Solve for x
    x = 5,707,321/886
  6. Step 6: Final answer
    x = 6,441.67

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Why These Related Problems?

These problems maintain the same ratio (2.70) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.