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Finding the Third Proportional to 11,996 and 18,776

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Solution

The third proportional to 11,996 and 18,776 is: 29,387.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,996 : 18,776 = 18,776 : x
  2. Step 2: Convert to fraction form
    11,996/18,776 = 18,776/x
  3. Step 3: Cross multiply
    11,996x = 18,776 × 18,776
  4. Step 4: Simplify right side
    11,996x = 352,538,176
  5. Step 5: Solve for x
    x = 352,538,176/11,996
  6. Step 6: Final answer
    x = 29,387.98

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.