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Finding the Fourth Proportional to 62,873.94, 86,729.22 and 40,517.94

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Solution

The fourth proportional to 62,873.94, 86,729.22 and 40,517.94 is: 55,891.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,873.94 : 86,729.22 = 40,517.94 : x
  2. Step 2: Convert to fraction form
    62,873.94/86,729.22 = 40,517.94/x
  3. Step 3: Cross multiply
    62,873.94x = 86,729.22 × 40,517.94
  4. Step 4: Simplify right side
    62,873.94x = 3,514,089,332.21
  5. Step 5: Solve for x
    x = 3,514,089,332.21/62,873.94
  6. Step 6: Final answer
    x = 55,891.03

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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.