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Finding the Third Proportional to 16,936 and 36,490

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Solution

The third proportional to 16,936 and 36,490 is: 78,620.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,936 : 36,490 = 36,490 : x
  2. Step 2: Convert to fraction form
    16,936/36,490 = 36,490/x
  3. Step 3: Cross multiply
    16,936x = 36,490 × 36,490
  4. Step 4: Simplify right side
    16,936x = 1,331,520,100
  5. Step 5: Solve for x
    x = 1,331,520,100/16,936
  6. Step 6: Final answer
    x = 78,620.70

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.