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Finding the Third Proportional to 12,328 and 27,128

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Solution

The third proportional to 12,328 and 27,128 is: 59,695.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,328 : 27,128 = 27,128 : x
  2. Step 2: Convert to fraction form
    12,328/27,128 = 27,128/x
  3. Step 3: Cross multiply
    12,328x = 27,128 × 27,128
  4. Step 4: Simplify right side
    12,328x = 735,928,384
  5. Step 5: Solve for x
    x = 735,928,384/12,328
  6. Step 6: Final answer
    x = 59,695.68

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.