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Finding the Fourth Proportional to 66,496.80, 91,745.60 and 43,827.65

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Solution

The fourth proportional to 66,496.80, 91,745.60 and 43,827.65 is: 60,468.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,496.80 : 91,745.60 = 43,827.65 : x
  2. Step 2: Convert to fraction form
    66,496.80/91,745.60 = 43,827.65/x
  3. Step 3: Cross multiply
    66,496.80x = 91,745.60 × 43,827.65
  4. Step 4: Simplify right side
    66,496.80x = 4,020,993,367.97
  5. Step 5: Solve for x
    x = 4,020,993,367.97/66,496.80
  6. Step 6: Final answer
    x = 60,468.98

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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.