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Finding the Fourth Proportional to 67,173.87, 100,677.78 and 33,903.48

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Solution

The fourth proportional to 67,173.87, 100,677.78 and 33,903.48 is: 50,813.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,173.87 : 100,677.78 = 33,903.48 : x
  2. Step 2: Convert to fraction form
    67,173.87/100,677.78 = 33,903.48/x
  3. Step 3: Cross multiply
    67,173.87x = 100,677.78 × 33,903.48
  4. Step 4: Simplify right side
    67,173.87x = 3,413,327,100.67
  5. Step 5: Solve for x
    x = 3,413,327,100.67/67,173.87
  6. Step 6: Final answer
    x = 50,813.32

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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.