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Finding the Third Proportional to 28,708 and 60,891

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Solution

The third proportional to 28,708 and 60,891 is: 129,152.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,708 : 60,891 = 60,891 : x
  2. Step 2: Convert to fraction form
    28,708/60,891 = 60,891/x
  3. Step 3: Cross multiply
    28,708x = 60,891 × 60,891
  4. Step 4: Simplify right side
    28,708x = 3,707,713,881
  5. Step 5: Solve for x
    x = 3,707,713,881/28,708
  6. Step 6: Final answer
    x = 129,152.64

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.