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Finding the Fourth Proportional to 5,842.12, 8,062.15 and 3,189.54

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Solution

The fourth proportional to 5,842.12, 8,062.15 and 3,189.54 is: 4,401.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,842.12 : 8,062.15 = 3,189.54 : x
  2. Step 2: Convert to fraction form
    5,842.12/8,062.15 = 3,189.54/x
  3. Step 3: Cross multiply
    5,842.12x = 8,062.15 × 3,189.54
  4. Step 4: Simplify right side
    5,842.12x = 25,714,549.91
  5. Step 5: Solve for x
    x = 25,714,549.91/5,842.12
  6. Step 6: Final answer
    x = 4,401.58

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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.