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Finding the Fourth Proportional to 67,206.73, 100,824.68 and 20,458.39

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Solution

The fourth proportional to 67,206.73, 100,824.68 and 20,458.39 is: 30,692.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,206.73 : 100,824.68 = 20,458.39 : x
  2. Step 2: Convert to fraction form
    67,206.73/100,824.68 = 20,458.39/x
  3. Step 3: Cross multiply
    67,206.73x = 100,824.68 × 20,458.39
  4. Step 4: Simplify right side
    67,206.73x = 2,062,710,674.38
  5. Step 5: Solve for x
    x = 2,062,710,674.38/67,206.73
  6. Step 6: Final answer
    x = 30,692.02

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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.