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Finding the Third Proportional to 28,622 and 62,712

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Solution

The third proportional to 28,622 and 62,712 is: 137,404.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,622 : 62,712 = 62,712 : x
  2. Step 2: Convert to fraction form
    28,622/62,712 = 62,712/x
  3. Step 3: Cross multiply
    28,622x = 62,712 × 62,712
  4. Step 4: Simplify right side
    28,622x = 3,932,794,944
  5. Step 5: Solve for x
    x = 3,932,794,944/28,622
  6. Step 6: Final answer
    x = 137,404.62

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.