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Finding the Third Proportional to 31,903 and 47,543

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Solution

The third proportional to 31,903 and 47,543 is: 70,850.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,903 : 47,543 = 47,543 : x
  2. Step 2: Convert to fraction form
    31,903/47,543 = 47,543/x
  3. Step 3: Cross multiply
    31,903x = 47,543 × 47,543
  4. Step 4: Simplify right side
    31,903x = 2,260,336,849
  5. Step 5: Solve for x
    x = 2,260,336,849/31,903
  6. Step 6: Final answer
    x = 70,850.29

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.