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Finding the Fourth Proportional to 66,589.82, 91,889.88 and 36,369.02

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Solution

The fourth proportional to 66,589.82, 91,889.88 and 36,369.02 is: 50,187.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,589.82 : 91,889.88 = 36,369.02 : x
  2. Step 2: Convert to fraction form
    66,589.82/91,889.88 = 36,369.02/x
  3. Step 3: Cross multiply
    66,589.82x = 91,889.88 × 36,369.02
  4. Step 4: Simplify right side
    66,589.82x = 3,341,944,883.52
  5. Step 5: Solve for x
    x = 3,341,944,883.52/66,589.82
  6. Step 6: Final answer
    x = 50,187.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.