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Finding the Third Proportional to 19,539 and 38,092.50

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Solution

The third proportional to 19,539 and 38,092.50 is: 74,263.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,539 : 38,092.50 = 38,092.50 : x
  2. Step 2: Convert to fraction form
    19,539/38,092.50 = 38,092.50/x
  3. Step 3: Cross multiply
    19,539x = 38,092.50 × 38,092.50
  4. Step 4: Simplify right side
    19,539x = 1,451,038,556.25
  5. Step 5: Solve for x
    x = 1,451,038,556.25/19,539
  6. Step 6: Final answer
    x = 74,263.71

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Why These Related Problems?

These problems maintain the same ratio (1.95) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.