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Finding the Fourth Proportional to 19,992.72, 27,593.27 and 11,927.41

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Solution

The fourth proportional to 19,992.72, 27,593.27 and 11,927.41 is: 16,461.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,992.72 : 27,593.27 = 11,927.41 : x
  2. Step 2: Convert to fraction form
    19,992.72/27,593.27 = 11,927.41/x
  3. Step 3: Cross multiply
    19,992.72x = 27,593.27 × 11,927.41
  4. Step 4: Simplify right side
    19,992.72x = 329,116,244.53
  5. Step 5: Solve for x
    x = 329,116,244.53/19,992.72
  6. Step 6: Final answer
    x = 16,461.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.