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Finding the Fourth Proportional to 22,388.12, 33,571.02 and 13,031.24

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Solution

The fourth proportional to 22,388.12, 33,571.02 and 13,031.24 is: 19,540.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,388.12 : 33,571.02 = 13,031.24 : x
  2. Step 2: Convert to fraction form
    22,388.12/33,571.02 = 13,031.24/x
  3. Step 3: Cross multiply
    22,388.12x = 33,571.02 × 13,031.24
  4. Step 4: Simplify right side
    22,388.12x = 437,472,018.66
  5. Step 5: Solve for x
    x = 437,472,018.66/22,388.12
  6. Step 6: Final answer
    x = 19,540.36

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