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Finding the Third Proportional to 18,833.50 and 28,291

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Solution

The third proportional to 18,833.50 and 28,291 is: 42,497.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,833.50 : 28,291 = 28,291 : x
  2. Step 2: Convert to fraction form
    18,833.50/28,291 = 28,291/x
  3. Step 3: Cross multiply
    18,833.50x = 28,291 × 28,291
  4. Step 4: Simplify right side
    18,833.50x = 800,380,681
  5. Step 5: Solve for x
    x = 800,380,681/18,833.50
  6. Step 6: Final answer
    x = 42,497.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.