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Finding the Fourth Proportional to 29,351.88, 44,027.28 and 11,821.28

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Solution

The fourth proportional to 29,351.88, 44,027.28 and 11,821.28 is: 17,731.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,351.88 : 44,027.28 = 11,821.28 : x
  2. Step 2: Convert to fraction form
    29,351.88/44,027.28 = 11,821.28/x
  3. Step 3: Cross multiply
    29,351.88x = 44,027.28 × 11,821.28
  4. Step 4: Simplify right side
    29,351.88x = 520,458,584.38
  5. Step 5: Solve for x
    x = 520,458,584.38/29,351.88
  6. Step 6: Final answer
    x = 17,731.70

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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.