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Finding the Fourth Proportional to 66,679.44, 91,984.08 and 43,994.52

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Solution

The fourth proportional to 66,679.44, 91,984.08 and 43,994.52 is: 60,690.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,679.44 : 91,984.08 = 43,994.52 : x
  2. Step 2: Convert to fraction form
    66,679.44/91,984.08 = 43,994.52/x
  3. Step 3: Cross multiply
    66,679.44x = 91,984.08 × 43,994.52
  4. Step 4: Simplify right side
    66,679.44x = 4,046,795,447.24
  5. Step 5: Solve for x
    x = 4,046,795,447.24/66,679.44
  6. Step 6: Final answer
    x = 60,690.30

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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.