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Finding the Third Proportional to 16,800 and 26,172

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Solution

The third proportional to 16,800 and 26,172 is: 40,772.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,800 : 26,172 = 26,172 : x
  2. Step 2: Convert to fraction form
    16,800/26,172 = 26,172/x
  3. Step 3: Cross multiply
    16,800x = 26,172 × 26,172
  4. Step 4: Simplify right side
    16,800x = 684,973,584
  5. Step 5: Solve for x
    x = 684,973,584/16,800
  6. Step 6: Final answer
    x = 40,772.24

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.