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Finding the Third Proportional to 16,921 and 25,313

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Solution

The third proportional to 16,921 and 25,313 is: 37,867.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,921 : 25,313 = 25,313 : x
  2. Step 2: Convert to fraction form
    16,921/25,313 = 25,313/x
  3. Step 3: Cross multiply
    16,921x = 25,313 × 25,313
  4. Step 4: Simplify right side
    16,921x = 640,747,969
  5. Step 5: Solve for x
    x = 640,747,969/16,921
  6. Step 6: Final answer
    x = 37,867.03

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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.