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Finding the Third Proportional to 13,015 and 28,217

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Solution

The third proportional to 13,015 and 28,217 is: 61,175.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,015 : 28,217 = 28,217 : x
  2. Step 2: Convert to fraction form
    13,015/28,217 = 28,217/x
  3. Step 3: Cross multiply
    13,015x = 28,217 × 28,217
  4. Step 4: Simplify right side
    13,015x = 796,199,089
  5. Step 5: Solve for x
    x = 796,199,089/13,015
  6. Step 6: Final answer
    x = 61,175.50

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.