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Finding the Fourth Proportional to 5,842.78, 8,062.74 and 3,189.68

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Solution

The fourth proportional to 5,842.78, 8,062.74 and 3,189.68 is: 4,401.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,842.78 : 8,062.74 = 3,189.68 : x
  2. Step 2: Convert to fraction form
    5,842.78/8,062.74 = 3,189.68/x
  3. Step 3: Cross multiply
    5,842.78x = 8,062.74 × 3,189.68
  4. Step 4: Simplify right side
    5,842.78x = 25,717,550.44
  5. Step 5: Solve for x
    x = 25,717,550.44/5,842.78
  6. Step 6: Final answer
    x = 4,401.59

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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.