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Finding the Fourth Proportional to 66,296.88, 91,489.86 and 36,082.17

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Solution

The fourth proportional to 66,296.88, 91,489.86 and 36,082.17 is: 49,793.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,296.88 : 91,489.86 = 36,082.17 : x
  2. Step 2: Convert to fraction form
    66,296.88/91,489.86 = 36,082.17/x
  3. Step 3: Cross multiply
    66,296.88x = 91,489.86 × 36,082.17
  4. Step 4: Simplify right side
    66,296.88x = 3,301,152,681.80
  5. Step 5: Solve for x
    x = 3,301,152,681.80/66,296.88
  6. Step 6: Final answer
    x = 49,793.48

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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.