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Finding the Fourth Proportional to 69,072.75, 103,609.13 and 22,325.63

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Solution

The fourth proportional to 69,072.75, 103,609.13 and 22,325.63 is: 33,488.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,072.75 : 103,609.13 = 22,325.63 : x
  2. Step 2: Convert to fraction form
    69,072.75/103,609.13 = 22,325.63/x
  3. Step 3: Cross multiply
    69,072.75x = 103,609.13 × 22,325.63
  4. Step 4: Simplify right side
    69,072.75x = 2,313,138,471.33
  5. Step 5: Solve for x
    x = 2,313,138,471.33/69,072.75
  6. Step 6: Final answer
    x = 33,488.44

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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.