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Finding the Third Proportional to 16,911 and 36,738

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Solution

The third proportional to 16,911 and 36,738 is: 79,810.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,911 : 36,738 = 36,738 : x
  2. Step 2: Convert to fraction form
    16,911/36,738 = 36,738/x
  3. Step 3: Cross multiply
    16,911x = 36,738 × 36,738
  4. Step 4: Simplify right side
    16,911x = 1,349,680,644
  5. Step 5: Solve for x
    x = 1,349,680,644/16,911
  6. Step 6: Final answer
    x = 79,810.81

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.