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Finding the Third Proportional to 18,521 and 40,735

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Solution

The third proportional to 18,521 and 40,735 is: 89,592.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,521 : 40,735 = 40,735 : x
  2. Step 2: Convert to fraction form
    18,521/40,735 = 40,735/x
  3. Step 3: Cross multiply
    18,521x = 40,735 × 40,735
  4. Step 4: Simplify right side
    18,521x = 1,659,340,225
  5. Step 5: Solve for x
    x = 1,659,340,225/18,521
  6. Step 6: Final answer
    x = 89,592.37

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.