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Finding the Fourth Proportional to 67,407.40, 100,975.76 and 33,571.44

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Solution

The fourth proportional to 67,407.40, 100,975.76 and 33,571.44 is: 50,289.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,407.40 : 100,975.76 = 33,571.44 : x
  2. Step 2: Convert to fraction form
    67,407.40/100,975.76 = 33,571.44/x
  3. Step 3: Cross multiply
    67,407.40x = 100,975.76 × 33,571.44
  4. Step 4: Simplify right side
    67,407.40x = 3,389,901,668.29
  5. Step 5: Solve for x
    x = 3,389,901,668.29/67,407.40
  6. Step 6: Final answer
    x = 50,289.76

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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.