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Finding the Fourth Proportional to 38,672.70, 57,965.85 and 22,040.70

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Solution

The fourth proportional to 38,672.70, 57,965.85 and 22,040.70 is: 33,036.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,672.70 : 57,965.85 = 22,040.70 : x
  2. Step 2: Convert to fraction form
    38,672.70/57,965.85 = 22,040.70/x
  3. Step 3: Cross multiply
    38,672.70x = 57,965.85 × 22,040.70
  4. Step 4: Simplify right side
    38,672.70x = 1,277,607,910.10
  5. Step 5: Solve for x
    x = 1,277,607,910.10/38,672.70
  6. Step 6: Final answer
    x = 33,036.43

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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.