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Finding the Fourth Proportional to 38,672.20, 57,965.10 and 22,040.20

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Solution

The fourth proportional to 38,672.20, 57,965.10 and 22,040.20 is: 33,035.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,672.20 : 57,965.10 = 22,040.20 : x
  2. Step 2: Convert to fraction form
    38,672.20/57,965.10 = 22,040.20/x
  3. Step 3: Cross multiply
    38,672.20x = 57,965.10 × 22,040.20
  4. Step 4: Simplify right side
    38,672.20x = 1,277,562,397.02
  5. Step 5: Solve for x
    x = 1,277,562,397.02/38,672.20
  6. Step 6: Final answer
    x = 33,035.68

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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.