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Finding the Fourth Proportional to 66,830.88, 92,228.57 and 36,618.86

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Solution

The fourth proportional to 66,830.88, 92,228.57 and 36,618.86 is: 50,535.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,830.88 : 92,228.57 = 36,618.86 : x
  2. Step 2: Convert to fraction form
    66,830.88/92,228.57 = 36,618.86/x
  3. Step 3: Cross multiply
    66,830.88x = 92,228.57 × 36,618.86
  4. Step 4: Simplify right side
    66,830.88x = 3,377,304,448.59
  5. Step 5: Solve for x
    x = 3,377,304,448.59/66,830.88
  6. Step 6: Final answer
    x = 50,535.09

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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.