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Finding the Third Proportional to 18,873 and 28,228.50

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Solution

The third proportional to 18,873 and 28,228.50 is: 42,221.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,873 : 28,228.50 = 28,228.50 : x
  2. Step 2: Convert to fraction form
    18,873/28,228.50 = 28,228.50/x
  3. Step 3: Cross multiply
    18,873x = 28,228.50 × 28,228.50
  4. Step 4: Simplify right side
    18,873x = 796,848,212.25
  5. Step 5: Solve for x
    x = 796,848,212.25/18,873
  6. Step 6: Final answer
    x = 42,221.60

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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.