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Finding the Third Proportional to 18,469 and 28,935

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Solution

The third proportional to 18,469 and 28,935 is: 45,331.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,469 : 28,935 = 28,935 : x
  2. Step 2: Convert to fraction form
    18,469/28,935 = 28,935/x
  3. Step 3: Cross multiply
    18,469x = 28,935 × 28,935
  4. Step 4: Simplify right side
    18,469x = 837,234,225
  5. Step 5: Solve for x
    x = 837,234,225/18,469
  6. Step 6: Final answer
    x = 45,331.87

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.