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Finding the Fourth Proportional to 66,544.02, 91,829.32 and 36,327.87

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Solution

The fourth proportional to 66,544.02, 91,829.32 and 36,327.87 is: 50,131.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,544.02 : 91,829.32 = 36,327.87 : x
  2. Step 2: Convert to fraction form
    66,544.02/91,829.32 = 36,327.87/x
  3. Step 3: Cross multiply
    66,544.02x = 91,829.32 × 36,327.87
  4. Step 4: Simplify right side
    66,544.02x = 3,335,963,508.33
  5. Step 5: Solve for x
    x = 3,335,963,508.33/66,544.02
  6. Step 6: Final answer
    x = 50,131.68

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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.