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Finding the Fourth Proportional to 66,564.62, 91,857.41 and 36,348.38

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Solution

The fourth proportional to 66,564.62, 91,857.41 and 36,348.38 is: 50,159.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,564.62 : 91,857.41 = 36,348.38 : x
  2. Step 2: Convert to fraction form
    66,564.62/91,857.41 = 36,348.38/x
  3. Step 3: Cross multiply
    66,564.62x = 91,857.41 × 36,348.38
  4. Step 4: Simplify right side
    66,564.62x = 3,338,867,403.47
  5. Step 5: Solve for x
    x = 3,338,867,403.47/66,564.62
  6. Step 6: Final answer
    x = 50,159.79

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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.