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Finding the Fourth Proportional to 22,391.57, 33,538.74 and 21,769.49

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Solution

The fourth proportional to 22,391.57, 33,538.74 and 21,769.49 is: 32,606.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,391.57 : 33,538.74 = 21,769.49 : x
  2. Step 2: Convert to fraction form
    22,391.57/33,538.74 = 21,769.49/x
  3. Step 3: Cross multiply
    22,391.57x = 33,538.74 × 21,769.49
  4. Step 4: Simplify right side
    22,391.57x = 730,121,097.35
  5. Step 5: Solve for x
    x = 730,121,097.35/22,391.57
  6. Step 6: Final answer
    x = 32,606.97

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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.