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Finding the Third Proportional to 61,784 and 125,756

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Solution

The third proportional to 61,784 and 125,756 is: 255,965.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,784 : 125,756 = 125,756 : x
  2. Step 2: Convert to fraction form
    61,784/125,756 = 125,756/x
  3. Step 3: Cross multiply
    61,784x = 125,756 × 125,756
  4. Step 4: Simplify right side
    61,784x = 15,814,571,536
  5. Step 5: Solve for x
    x = 15,814,571,536/61,784
  6. Step 6: Final answer
    x = 255,965.49

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.