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Finding the Fourth Proportional to 66,533.52, 99,819.24 and 22,189.32

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Solution

The fourth proportional to 66,533.52, 99,819.24 and 22,189.32 is: 33,290.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,533.52 : 99,819.24 = 22,189.32 : x
  2. Step 2: Convert to fraction form
    66,533.52/99,819.24 = 22,189.32/x
  3. Step 3: Cross multiply
    66,533.52x = 99,819.24 × 22,189.32
  4. Step 4: Simplify right side
    66,533.52x = 2,214,921,058.52
  5. Step 5: Solve for x
    x = 2,214,921,058.52/66,533.52
  6. Step 6: Final answer
    x = 33,290.30

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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.