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Finding the Third Proportional to 18,704 and 28,104

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Solution

The third proportional to 18,704 and 28,104 is: 42,228.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,704 : 28,104 = 28,104 : x
  2. Step 2: Convert to fraction form
    18,704/28,104 = 28,104/x
  3. Step 3: Cross multiply
    18,704x = 28,104 × 28,104
  4. Step 4: Simplify right side
    18,704x = 789,834,816
  5. Step 5: Solve for x
    x = 789,834,816/18,704
  6. Step 6: Final answer
    x = 42,228.12

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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.