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Finding the Fourth Proportional to 66,274.44, 91,458.74 and 36,059.78

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Solution

The fourth proportional to 66,274.44, 91,458.74 and 36,059.78 is: 49,762.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,274.44 : 91,458.74 = 36,059.78 : x
  2. Step 2: Convert to fraction form
    66,274.44/91,458.74 = 36,059.78/x
  3. Step 3: Cross multiply
    66,274.44x = 91,458.74 × 36,059.78
  4. Step 4: Simplify right side
    66,274.44x = 3,297,982,043.48
  5. Step 5: Solve for x
    x = 3,297,982,043.48/66,274.44
  6. Step 6: Final answer
    x = 49,762.50

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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.