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Finding the Fourth Proportional to 66,793.17, 100,142.37 and 33,489.21

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Solution

The fourth proportional to 66,793.17, 100,142.37 and 33,489.21 is: 50,210.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,793.17 : 100,142.37 = 33,489.21 : x
  2. Step 2: Convert to fraction form
    66,793.17/100,142.37 = 33,489.21/x
  3. Step 3: Cross multiply
    66,793.17x = 100,142.37 × 33,489.21
  4. Step 4: Simplify right side
    66,793.17x = 3,353,688,858.83
  5. Step 5: Solve for x
    x = 3,353,688,858.83/66,793.17
  6. Step 6: Final answer
    x = 50,210.06

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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.