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Finding the Fourth Proportional to 57,797.44, 79,826.28 and 38,901.76

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Solution

The fourth proportional to 57,797.44, 79,826.28 and 38,901.76 is: 53,728.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,797.44 : 79,826.28 = 38,901.76 : x
  2. Step 2: Convert to fraction form
    57,797.44/79,826.28 = 38,901.76/x
  3. Step 3: Cross multiply
    57,797.44x = 79,826.28 × 38,901.76
  4. Step 4: Simplify right side
    57,797.44x = 3,105,382,786.25
  5. Step 5: Solve for x
    x = 3,105,382,786.25/57,797.44
  6. Step 6: Final answer
    x = 53,728.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.