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Finding the Fourth Proportional to 19,696.88, 27,179.25 and 12,044.00

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Solution

The fourth proportional to 19,696.88, 27,179.25 and 12,044.00 is: 16,619.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,696.88 : 27,179.25 = 12,044.00 : x
  2. Step 2: Convert to fraction form
    19,696.88/27,179.25 = 12,044.00/x
  3. Step 3: Cross multiply
    19,696.88x = 27,179.25 × 12,044.00
  4. Step 4: Simplify right side
    19,696.88x = 327,346,751.10
  5. Step 5: Solve for x
    x = 327,346,751.10/19,696.88
  6. Step 6: Final answer
    x = 16,619.22

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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.