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Finding the Fourth Proportional to 83,491.64, 125,243.23 and 33,571.74

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Solution

The fourth proportional to 83,491.64, 125,243.23 and 33,571.74 is: 50,359.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,491.64 : 125,243.23 = 33,571.74 : x
  2. Step 2: Convert to fraction form
    83,491.64/125,243.23 = 33,571.74/x
  3. Step 3: Cross multiply
    83,491.64x = 125,243.23 × 33,571.74
  4. Step 4: Simplify right side
    83,491.64x = 4,204,633,070.39
  5. Step 5: Solve for x
    x = 4,204,633,070.39/83,491.64
  6. Step 6: Final answer
    x = 50,359.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.