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Finding the Third Proportional to 19,331 and 42,349

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Solution

The third proportional to 19,331 and 42,349 is: 92,775.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,331 : 42,349 = 42,349 : x
  2. Step 2: Convert to fraction form
    19,331/42,349 = 42,349/x
  3. Step 3: Cross multiply
    19,331x = 42,349 × 42,349
  4. Step 4: Simplify right side
    19,331x = 1,793,437,801
  5. Step 5: Solve for x
    x = 1,793,437,801/19,331
  6. Step 6: Final answer
    x = 92,775.22

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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.