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Finding the Third Proportional to 19,553 and 31,483

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Solution

The third proportional to 19,553 and 31,483 is: 50,691.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,553 : 31,483 = 31,483 : x
  2. Step 2: Convert to fraction form
    19,553/31,483 = 31,483/x
  3. Step 3: Cross multiply
    19,553x = 31,483 × 31,483
  4. Step 4: Simplify right side
    19,553x = 991,179,289
  5. Step 5: Solve for x
    x = 991,179,289/19,553
  6. Step 6: Final answer
    x = 50,691.93

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.