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Finding the Third Proportional to 5,472 and 12,768

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Solution

The third proportional to 5,472 and 12,768 is: 29,792

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,472 : 12,768 = 12,768 : x
  2. Step 2: Convert to fraction form
    5,472/12,768 = 12,768/x
  3. Step 3: Cross multiply
    5,472x = 12,768 × 12,768
  4. Step 4: Simplify right side
    5,472x = 163,021,824
  5. Step 5: Solve for x
    x = 163,021,824/5,472
  6. Step 6: Final answer
    x = 29,792

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Why These Related Problems?

These problems maintain the same ratio (2.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.