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Finding the Third Proportional to 4,350 and 6,889

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Solution

The third proportional to 4,350 and 6,889 is: 10,909.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,350 : 6,889 = 6,889 : x
  2. Step 2: Convert to fraction form
    4,350/6,889 = 6,889/x
  3. Step 3: Cross multiply
    4,350x = 6,889 × 6,889
  4. Step 4: Simplify right side
    4,350x = 47,458,321
  5. Step 5: Solve for x
    x = 47,458,321/4,350
  6. Step 6: Final answer
    x = 10,909.96

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.