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Finding the Fourth Proportional to 53,679.78, 80,841.17 and 48,891.42

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Solution

The fourth proportional to 53,679.78, 80,841.17 and 48,891.42 is: 73,629.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,679.78 : 80,841.17 = 48,891.42 : x
  2. Step 2: Convert to fraction form
    53,679.78/80,841.17 = 48,891.42/x
  3. Step 3: Cross multiply
    53,679.78x = 80,841.17 × 48,891.42
  4. Step 4: Simplify right side
    53,679.78x = 3,952,439,351.30
  5. Step 5: Solve for x
    x = 3,952,439,351.30/53,679.78
  6. Step 6: Final answer
    x = 73,629.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.