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Finding the Third Proportional to 59,420 and 127,768

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Solution

The third proportional to 59,420 and 127,768 is: 274,733.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,420 : 127,768 = 127,768 : x
  2. Step 2: Convert to fraction form
    59,420/127,768 = 127,768/x
  3. Step 3: Cross multiply
    59,420x = 127,768 × 127,768
  4. Step 4: Simplify right side
    59,420x = 16,324,661,824
  5. Step 5: Solve for x
    x = 16,324,661,824/59,420
  6. Step 6: Final answer
    x = 274,733.45

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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.