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Finding the Third Proportional to 4,411 and 7,889

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Solution

The third proportional to 4,411 and 7,889 is: 14,109.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,411 : 7,889 = 7,889 : x
  2. Step 2: Convert to fraction form
    4,411/7,889 = 7,889/x
  3. Step 3: Cross multiply
    4,411x = 7,889 × 7,889
  4. Step 4: Simplify right side
    4,411x = 62,236,321
  5. Step 5: Solve for x
    x = 62,236,321/4,411
  6. Step 6: Final answer
    x = 14,109.35

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Why These Related Problems?

These problems maintain the same ratio (1.79) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.