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Finding the Fourth Proportional to 66,081.77, 91,192.92 and 35,867.09

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Solution

The fourth proportional to 66,081.77, 91,192.92 and 35,867.09 is: 49,496.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,081.77 : 91,192.92 = 35,867.09 : x
  2. Step 2: Convert to fraction form
    66,081.77/91,192.92 = 35,867.09/x
  3. Step 3: Cross multiply
    66,081.77x = 91,192.92 × 35,867.09
  4. Step 4: Simplify right side
    66,081.77x = 3,270,824,669.00
  5. Step 5: Solve for x
    x = 3,270,824,669.00/66,081.77
  6. Step 6: Final answer
    x = 49,496.63

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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.