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Finding the Fourth Proportional to 68,493.42, 94,520.76 and 38,278.73

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Solution

The fourth proportional to 68,493.42, 94,520.76 and 38,278.73 is: 52,824.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,493.42 : 94,520.76 = 38,278.73 : x
  2. Step 2: Convert to fraction form
    68,493.42/94,520.76 = 38,278.73/x
  3. Step 3: Cross multiply
    68,493.42x = 94,520.76 × 38,278.73
  4. Step 4: Simplify right side
    68,493.42x = 3,618,134,651.43
  5. Step 5: Solve for x
    x = 3,618,134,651.43/68,493.42
  6. Step 6: Final answer
    x = 52,824.56

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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.