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Finding the Fourth Proportional to 5,790.12, 7,992.48 and 3,801.12

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Solution

The fourth proportional to 5,790.12, 7,992.48 and 3,801.12 is: 5,246.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,790.12 : 7,992.48 = 3,801.12 : x
  2. Step 2: Convert to fraction form
    5,790.12/7,992.48 = 3,801.12/x
  3. Step 3: Cross multiply
    5,790.12x = 7,992.48 × 3,801.12
  4. Step 4: Simplify right side
    5,790.12x = 30,380,375.58
  5. Step 5: Solve for x
    x = 30,380,375.58/5,790.12
  6. Step 6: Final answer
    x = 5,246.93

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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.