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Finding the Third Proportional to 19,934 and 31,725

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Solution

The third proportional to 19,934 and 31,725 is: 50,490.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,934 : 31,725 = 31,725 : x
  2. Step 2: Convert to fraction form
    19,934/31,725 = 31,725/x
  3. Step 3: Cross multiply
    19,934x = 31,725 × 31,725
  4. Step 4: Simplify right side
    19,934x = 1,006,475,625
  5. Step 5: Solve for x
    x = 1,006,475,625/19,934
  6. Step 6: Final answer
    x = 50,490.40

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.