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Finding the Third Proportional to 16,916 and 39,516

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Solution

The third proportional to 16,916 and 39,516 is: 92,309.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,916 : 39,516 = 39,516 : x
  2. Step 2: Convert to fraction form
    16,916/39,516 = 39,516/x
  3. Step 3: Cross multiply
    16,916x = 39,516 × 39,516
  4. Step 4: Simplify right side
    16,916x = 1,561,514,256
  5. Step 5: Solve for x
    x = 1,561,514,256/16,916
  6. Step 6: Final answer
    x = 92,309.90

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Why These Related Problems?

These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.