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Finding the Third Proportional to 16,860.19 and 36,180.75

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Solution

The third proportional to 16,860.19 and 36,180.75 is: 77,641.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,860.19 : 36,180.75 = 36,180.75 : x
  2. Step 2: Convert to fraction form
    16,860.19/36,180.75 = 36,180.75/x
  3. Step 3: Cross multiply
    16,860.19x = 36,180.75 × 36,180.75
  4. Step 4: Simplify right side
    16,860.19x = 1,309,046,670.56
  5. Step 5: Solve for x
    x = 1,309,046,670.56/16,860.19
  6. Step 6: Final answer
    x = 77,641.29

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.