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Finding the Third Proportional to 28,684 and 62,660

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Solution

The third proportional to 28,684 and 62,660 is: 136,880.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,684 : 62,660 = 62,660 : x
  2. Step 2: Convert to fraction form
    28,684/62,660 = 62,660/x
  3. Step 3: Cross multiply
    28,684x = 62,660 × 62,660
  4. Step 4: Simplify right side
    28,684x = 3,926,275,600
  5. Step 5: Solve for x
    x = 3,926,275,600/28,684
  6. Step 6: Final answer
    x = 136,880.34

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.