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Finding the Third Proportional to 8,799.50 and 18,974

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Solution

The third proportional to 8,799.50 and 18,974 is: 40,912.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,799.50 : 18,974 = 18,974 : x
  2. Step 2: Convert to fraction form
    8,799.50/18,974 = 18,974/x
  3. Step 3: Cross multiply
    8,799.50x = 18,974 × 18,974
  4. Step 4: Simplify right side
    8,799.50x = 360,012,676
  5. Step 5: Solve for x
    x = 360,012,676/8,799.50
  6. Step 6: Final answer
    x = 40,912.86

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.