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Finding the Fourth Proportional to 34,797.88, 48,018.43 and 20,458.30

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Solution

The fourth proportional to 34,797.88, 48,018.43 and 20,458.30 is: 28,230.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,797.88 : 48,018.43 = 20,458.30 : x
  2. Step 2: Convert to fraction form
    34,797.88/48,018.43 = 20,458.30/x
  3. Step 3: Cross multiply
    34,797.88x = 48,018.43 × 20,458.30
  4. Step 4: Simplify right side
    34,797.88x = 982,375,335.75
  5. Step 5: Solve for x
    x = 982,375,335.75/34,797.88
  6. Step 6: Final answer
    x = 28,230.90

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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.