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Finding the Fourth Proportional to 66,617.56, 99,936.06 and 22,236.04

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Solution

The fourth proportional to 66,617.56, 99,936.06 and 22,236.04 is: 33,357.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,617.56 : 99,936.06 = 22,236.04 : x
  2. Step 2: Convert to fraction form
    66,617.56/99,936.06 = 22,236.04/x
  3. Step 3: Cross multiply
    66,617.56x = 99,936.06 × 22,236.04
  4. Step 4: Simplify right side
    66,617.56x = 2,222,182,227.60
  5. Step 5: Solve for x
    x = 2,222,182,227.60/66,617.56
  6. Step 6: Final answer
    x = 33,357.30

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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.