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Finding the Third Proportional to 12,816 and 27,576

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Solution

The third proportional to 12,816 and 27,576 is: 59,334.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,816 : 27,576 = 27,576 : x
  2. Step 2: Convert to fraction form
    12,816/27,576 = 27,576/x
  3. Step 3: Cross multiply
    12,816x = 27,576 × 27,576
  4. Step 4: Simplify right side
    12,816x = 760,435,776
  5. Step 5: Solve for x
    x = 760,435,776/12,816
  6. Step 6: Final answer
    x = 59,334.88

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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.