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Finding the Third Proportional to 8,920.50 and 18,846

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Solution

The third proportional to 8,920.50 and 18,846 is: 39,815.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,920.50 : 18,846 = 18,846 : x
  2. Step 2: Convert to fraction form
    8,920.50/18,846 = 18,846/x
  3. Step 3: Cross multiply
    8,920.50x = 18,846 × 18,846
  4. Step 4: Simplify right side
    8,920.50x = 355,171,716
  5. Step 5: Solve for x
    x = 355,171,716/8,920.50
  6. Step 6: Final answer
    x = 39,815.23

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.