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Finding the Fourth Proportional to 57,490.29, 79,345.98 and 34,845.12

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Solution

The fourth proportional to 57,490.29, 79,345.98 and 34,845.12 is: 48,091.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,490.29 : 79,345.98 = 34,845.12 : x
  2. Step 2: Convert to fraction form
    57,490.29/79,345.98 = 34,845.12/x
  3. Step 3: Cross multiply
    57,490.29x = 79,345.98 × 34,845.12
  4. Step 4: Simplify right side
    57,490.29x = 2,764,820,194.62
  5. Step 5: Solve for x
    x = 2,764,820,194.62/57,490.29
  6. Step 6: Final answer
    x = 48,091.95

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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.