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Finding the Fourth Proportional to 66,557.52, 99,855.24 and 22,213.32

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Solution

The fourth proportional to 66,557.52, 99,855.24 and 22,213.32 is: 33,326.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,557.52 : 99,855.24 = 22,213.32 : x
  2. Step 2: Convert to fraction form
    66,557.52/99,855.24 = 22,213.32/x
  3. Step 3: Cross multiply
    66,557.52x = 99,855.24 × 22,213.32
  4. Step 4: Simplify right side
    66,557.52x = 2,218,116,399.80
  5. Step 5: Solve for x
    x = 2,218,116,399.80/66,557.52
  6. Step 6: Final answer
    x = 33,326.31

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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.