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Finding the Fourth Proportional to 22,145.80, 33,197.08 and 8,285.08

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Solution

The fourth proportional to 22,145.80, 33,197.08 and 8,285.08 is: 12,419.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,145.80 : 33,197.08 = 8,285.08 : x
  2. Step 2: Convert to fraction form
    22,145.80/33,197.08 = 8,285.08/x
  3. Step 3: Cross multiply
    22,145.80x = 33,197.08 × 8,285.08
  4. Step 4: Simplify right side
    22,145.80x = 275,040,463.57
  5. Step 5: Solve for x
    x = 275,040,463.57/22,145.80
  6. Step 6: Final answer
    x = 12,419.53

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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.