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Finding the Third Proportional to 28,165 and 60,490

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Solution

The third proportional to 28,165 and 60,490 is: 129,914.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,165 : 60,490 = 60,490 : x
  2. Step 2: Convert to fraction form
    28,165/60,490 = 60,490/x
  3. Step 3: Cross multiply
    28,165x = 60,490 × 60,490
  4. Step 4: Simplify right side
    28,165x = 3,659,040,100
  5. Step 5: Solve for x
    x = 3,659,040,100/28,165
  6. Step 6: Final answer
    x = 129,914.44

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.