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Finding the Third Proportional to 18,530 and 28,735

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Solution

The third proportional to 18,530 and 28,735 is: 44,560.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,530 : 28,735 = 28,735 : x
  2. Step 2: Convert to fraction form
    18,530/28,735 = 28,735/x
  3. Step 3: Cross multiply
    18,530x = 28,735 × 28,735
  4. Step 4: Simplify right side
    18,530x = 825,700,225
  5. Step 5: Solve for x
    x = 825,700,225/18,530
  6. Step 6: Final answer
    x = 44,560.18

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.