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Finding the Fourth Proportional to 66,441.25, 99,662.24 and 17,193.25

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Solution

The fourth proportional to 66,441.25, 99,662.24 and 17,193.25 is: 25,789.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,441.25 : 99,662.24 = 17,193.25 : x
  2. Step 2: Convert to fraction form
    66,441.25/99,662.24 = 17,193.25/x
  3. Step 3: Cross multiply
    66,441.25x = 99,662.24 × 17,193.25
  4. Step 4: Simplify right side
    66,441.25x = 1,713,517,807.88
  5. Step 5: Solve for x
    x = 1,713,517,807.88/66,441.25
  6. Step 6: Final answer
    x = 25,789.97

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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.