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Finding the Fourth Proportional to 19,571.26, 29,362.06 and 5,531.32

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Solution

The fourth proportional to 19,571.26, 29,362.06 and 5,531.32 is: 8,298.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,571.26 : 29,362.06 = 5,531.32 : x
  2. Step 2: Convert to fraction form
    19,571.26/29,362.06 = 5,531.32/x
  3. Step 3: Cross multiply
    19,571.26x = 29,362.06 × 5,531.32
  4. Step 4: Simplify right side
    19,571.26x = 162,410,949.72
  5. Step 5: Solve for x
    x = 162,410,949.72/19,571.26
  6. Step 6: Final answer
    x = 8,298.44

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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.