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Finding the Third Proportional to 28,683 and 61,761

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Solution

The third proportional to 28,683 and 61,761 is: 132,985.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,683 : 61,761 = 61,761 : x
  2. Step 2: Convert to fraction form
    28,683/61,761 = 61,761/x
  3. Step 3: Cross multiply
    28,683x = 61,761 × 61,761
  4. Step 4: Simplify right side
    28,683x = 3,814,421,121
  5. Step 5: Solve for x
    x = 3,814,421,121/28,683
  6. Step 6: Final answer
    x = 132,985.43

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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.