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Finding the Third Proportional to 19,392 and 27,959

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Solution

The third proportional to 19,392 and 27,959 is: 40,310.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,392 : 27,959 = 27,959 : x
  2. Step 2: Convert to fraction form
    19,392/27,959 = 27,959/x
  3. Step 3: Cross multiply
    19,392x = 27,959 × 27,959
  4. Step 4: Simplify right side
    19,392x = 781,705,681
  5. Step 5: Solve for x
    x = 781,705,681/19,392
  6. Step 6: Final answer
    x = 40,310.73

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.