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Finding the Fourth Proportional to 66,919.80, 100,363.50 and 22,535.04

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Solution

The fourth proportional to 66,919.80, 100,363.50 and 22,535.04 is: 33,797.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,919.80 : 100,363.50 = 22,535.04 : x
  2. Step 2: Convert to fraction form
    66,919.80/100,363.50 = 22,535.04/x
  3. Step 3: Cross multiply
    66,919.80x = 100,363.50 × 22,535.04
  4. Step 4: Simplify right side
    66,919.80x = 2,261,695,487.04
  5. Step 5: Solve for x
    x = 2,261,695,487.04/66,919.80
  6. Step 6: Final answer
    x = 33,797.10

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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.