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Finding the Third Proportional to 11,103 and 16,621

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Solution

The third proportional to 11,103 and 16,621 is: 24,881.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,103 : 16,621 = 16,621 : x
  2. Step 2: Convert to fraction form
    11,103/16,621 = 16,621/x
  3. Step 3: Cross multiply
    11,103x = 16,621 × 16,621
  4. Step 4: Simplify right side
    11,103x = 276,257,641
  5. Step 5: Solve for x
    x = 276,257,641/11,103
  6. Step 6: Final answer
    x = 24,881.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.