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Finding the Fourth Proportional to 61,806.60, 85,292.64 and 33,512.22

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Solution

The fourth proportional to 61,806.60, 85,292.64 and 33,512.22 is: 46,246.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,806.60 : 85,292.64 = 33,512.22 : x
  2. Step 2: Convert to fraction form
    61,806.60/85,292.64 = 33,512.22/x
  3. Step 3: Cross multiply
    61,806.60x = 85,292.64 × 33,512.22
  4. Step 4: Simplify right side
    61,806.60x = 2,858,345,716.06
  5. Step 5: Solve for x
    x = 2,858,345,716.06/61,806.60
  6. Step 6: Final answer
    x = 46,246.61

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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.