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Finding the Third Proportional to 8,372 and 12,951.63

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Solution

The third proportional to 8,372 and 12,951.63 is: 20,036.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,372 : 12,951.63 = 12,951.63 : x
  2. Step 2: Convert to fraction form
    8,372/12,951.63 = 12,951.63/x
  3. Step 3: Cross multiply
    8,372x = 12,951.63 × 12,951.63
  4. Step 4: Simplify right side
    8,372x = 167,744,590.14
  5. Step 5: Solve for x
    x = 167,744,590.14/8,372
  6. Step 6: Final answer
    x = 20,036.38

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.