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Finding the Fourth Proportional to 42,078.62, 57,998.04 and 36,961.04

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Solution

The fourth proportional to 42,078.62, 57,998.04 and 36,961.04 is: 50,944.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,078.62 : 57,998.04 = 36,961.04 : x
  2. Step 2: Convert to fraction form
    42,078.62/57,998.04 = 36,961.04/x
  3. Step 3: Cross multiply
    42,078.62x = 57,998.04 × 36,961.04
  4. Step 4: Simplify right side
    42,078.62x = 2,143,667,876.36
  5. Step 5: Solve for x
    x = 2,143,667,876.36/42,078.62
  6. Step 6: Final answer
    x = 50,944.35

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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.