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Finding the Fourth Proportional to 67,251.82, 100,877.73 and 20,504.29

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Solution

The fourth proportional to 67,251.82, 100,877.73 and 20,504.29 is: 30,756.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,251.82 : 100,877.73 = 20,504.29 : x
  2. Step 2: Convert to fraction form
    67,251.82/100,877.73 = 20,504.29/x
  3. Step 3: Cross multiply
    67,251.82x = 100,877.73 × 20,504.29
  4. Step 4: Simplify right side
    67,251.82x = 2,068,426,230.46
  5. Step 5: Solve for x
    x = 2,068,426,230.46/67,251.82
  6. Step 6: Final answer
    x = 30,756.44

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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.