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Finding the Fourth Proportional to 67,245.52, 100,883.25 and 20,502.04

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Solution

The fourth proportional to 67,245.52, 100,883.25 and 20,502.04 is: 30,757.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,245.52 : 100,883.25 = 20,502.04 : x
  2. Step 2: Convert to fraction form
    67,245.52/100,883.25 = 20,502.04/x
  3. Step 3: Cross multiply
    67,245.52x = 100,883.25 × 20,502.04
  4. Step 4: Simplify right side
    67,245.52x = 2,068,312,426.83
  5. Step 5: Solve for x
    x = 2,068,312,426.83/67,245.52
  6. Step 6: Final answer
    x = 30,757.62

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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.