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Finding the Third Proportional to 12,661 and 27,708.50

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Solution

The third proportional to 12,661 and 27,708.50 is: 60,639.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,661 : 27,708.50 = 27,708.50 : x
  2. Step 2: Convert to fraction form
    12,661/27,708.50 = 27,708.50/x
  3. Step 3: Cross multiply
    12,661x = 27,708.50 × 27,708.50
  4. Step 4: Simplify right side
    12,661x = 767,760,972.25
  5. Step 5: Solve for x
    x = 767,760,972.25/12,661
  6. Step 6: Final answer
    x = 60,639.84

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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.