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Finding the Fourth Proportional to 11,959.36, 17,939.04 and 5,029.44

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Solution

The fourth proportional to 11,959.36, 17,939.04 and 5,029.44 is: 7,544.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,959.36 : 17,939.04 = 5,029.44 : x
  2. Step 2: Convert to fraction form
    11,959.36/17,939.04 = 5,029.44/x
  3. Step 3: Cross multiply
    11,959.36x = 17,939.04 × 5,029.44
  4. Step 4: Simplify right side
    11,959.36x = 90,223,325.34
  5. Step 5: Solve for x
    x = 90,223,325.34/11,959.36
  6. Step 6: Final answer
    x = 7,544.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.