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Finding the Fourth Proportional to 66,766.88, 92,139.39 and 36,551.69

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Solution

The fourth proportional to 66,766.88, 92,139.39 and 36,551.69 is: 50,441.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,766.88 : 92,139.39 = 36,551.69 : x
  2. Step 2: Convert to fraction form
    66,766.88/92,139.39 = 36,551.69/x
  3. Step 3: Cross multiply
    66,766.88x = 92,139.39 × 36,551.69
  4. Step 4: Simplify right side
    66,766.88x = 3,367,850,304.89
  5. Step 5: Solve for x
    x = 3,367,850,304.89/66,766.88
  6. Step 6: Final answer
    x = 50,441.93

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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.