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Finding the Fourth Proportional to 5,881.97, 8,112.86 and 3,992.95

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Solution

The fourth proportional to 5,881.97, 8,112.86 and 3,992.95 is: 5,507.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,881.97 : 8,112.86 = 3,992.95 : x
  2. Step 2: Convert to fraction form
    5,881.97/8,112.86 = 3,992.95/x
  3. Step 3: Cross multiply
    5,881.97x = 8,112.86 × 3,992.95
  4. Step 4: Simplify right side
    5,881.97x = 32,394,203.85
  5. Step 5: Solve for x
    x = 32,394,203.85/5,881.97
  6. Step 6: Final answer
    x = 5,507.38

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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.