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Finding the Fourth Proportional to 66,234.97, 91,400.56 and 37,942.48

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Solution

The fourth proportional to 66,234.97, 91,400.56 and 37,942.48 is: 52,358.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,234.97 : 91,400.56 = 37,942.48 : x
  2. Step 2: Convert to fraction form
    66,234.97/91,400.56 = 37,942.48/x
  3. Step 3: Cross multiply
    66,234.97x = 91,400.56 × 37,942.48
  4. Step 4: Simplify right side
    66,234.97x = 3,467,963,919.79
  5. Step 5: Solve for x
    x = 3,467,963,919.79/66,234.97
  6. Step 6: Final answer
    x = 52,358.50

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1.5x scale

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.