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Finding the Third Proportional to 6,792 and 15,120

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Solution

The third proportional to 6,792 and 15,120 is: 33,659.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,792 : 15,120 = 15,120 : x
  2. Step 2: Convert to fraction form
    6,792/15,120 = 15,120/x
  3. Step 3: Cross multiply
    6,792x = 15,120 × 15,120
  4. Step 4: Simplify right side
    6,792x = 228,614,400
  5. Step 5: Solve for x
    x = 228,614,400/6,792
  6. Step 6: Final answer
    x = 33,659.36

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Why These Related Problems?

These problems maintain the same ratio (2.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.