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Finding the Fourth Proportional to 67,114.05, 100,671.68 and 20,366.93

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Solution

The fourth proportional to 67,114.05, 100,671.68 and 20,366.93 is: 30,550.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,114.05 : 100,671.68 = 20,366.93 : x
  2. Step 2: Convert to fraction form
    67,114.05/100,671.68 = 20,366.93/x
  3. Step 3: Cross multiply
    67,114.05x = 100,671.68 × 20,366.93
  4. Step 4: Simplify right side
    67,114.05x = 2,050,373,059.54
  5. Step 5: Solve for x
    x = 2,050,373,059.54/67,114.05
  6. Step 6: Final answer
    x = 30,550.58

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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.