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Finding the Fourth Proportional to 66,800.25, 100,205.22 and 22,426.62

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Solution

The fourth proportional to 66,800.25, 100,205.22 and 22,426.62 is: 33,641.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,800.25 : 100,205.22 = 22,426.62 : x
  2. Step 2: Convert to fraction form
    66,800.25/100,205.22 = 22,426.62/x
  3. Step 3: Cross multiply
    66,800.25x = 100,205.22 × 22,426.62
  4. Step 4: Simplify right side
    66,800.25x = 2,247,264,390.96
  5. Step 5: Solve for x
    x = 2,247,264,390.96/66,800.25
  6. Step 6: Final answer
    x = 33,641.56

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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.