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Finding the Fourth Proportional to 67,324.52, 100,983.12 and 20,573.72

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Solution

The fourth proportional to 67,324.52, 100,983.12 and 20,573.72 is: 30,859.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,324.52 : 100,983.12 = 20,573.72 : x
  2. Step 2: Convert to fraction form
    67,324.52/100,983.12 = 20,573.72/x
  3. Step 3: Cross multiply
    67,324.52x = 100,983.12 × 20,573.72
  4. Step 4: Simplify right side
    67,324.52x = 2,077,598,435.61
  5. Step 5: Solve for x
    x = 2,077,598,435.61/67,324.52
  6. Step 6: Final answer
    x = 30,859.46

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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.