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Finding the Third Proportional to 10,137.50 and 15,165

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Solution

The third proportional to 10,137.50 and 15,165 is: 22,685.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,137.50 : 15,165 = 15,165 : x
  2. Step 2: Convert to fraction form
    10,137.50/15,165 = 15,165/x
  3. Step 3: Cross multiply
    10,137.50x = 15,165 × 15,165
  4. Step 4: Simplify right side
    10,137.50x = 229,977,225
  5. Step 5: Solve for x
    x = 229,977,225/10,137.50
  6. Step 6: Final answer
    x = 22,685.79

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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.