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Finding the Third Proportional to 14,191 and 31,137

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Solution

The third proportional to 14,191 and 31,137 is: 68,318.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,191 : 31,137 = 31,137 : x
  2. Step 2: Convert to fraction form
    14,191/31,137 = 31,137/x
  3. Step 3: Cross multiply
    14,191x = 31,137 × 31,137
  4. Step 4: Simplify right side
    14,191x = 969,512,769
  5. Step 5: Solve for x
    x = 969,512,769/14,191
  6. Step 6: Final answer
    x = 68,318.85

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.