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Finding the Fourth Proportional to 66,622.88, 91,944.80 and 37,943.75

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Solution

The fourth proportional to 66,622.88, 91,944.80 and 37,943.75 is: 52,365.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,622.88 : 91,944.80 = 37,943.75 : x
  2. Step 2: Convert to fraction form
    66,622.88/91,944.80 = 37,943.75/x
  3. Step 3: Cross multiply
    66,622.88x = 91,944.80 × 37,943.75
  4. Step 4: Simplify right side
    66,622.88x = 3,488,729,855.56
  5. Step 5: Solve for x
    x = 3,488,729,855.56/66,622.88
  6. Step 6: Final answer
    x = 52,365.35

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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.