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Finding the Fourth Proportional to 66,805.70, 100,208.55 and 22,433.90

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Solution

The fourth proportional to 66,805.70, 100,208.55 and 22,433.90 is: 33,650.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,805.70 : 100,208.55 = 22,433.90 : x
  2. Step 2: Convert to fraction form
    66,805.70/100,208.55 = 22,433.90/x
  3. Step 3: Cross multiply
    66,805.70x = 100,208.55 × 22,433.90
  4. Step 4: Simplify right side
    66,805.70x = 2,248,068,589.85
  5. Step 5: Solve for x
    x = 2,248,068,589.85/66,805.70
  6. Step 6: Final answer
    x = 33,650.85

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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.