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Finding the Fourth Proportional to 5,855.98, 8,081.42 and 3,203.55

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Solution

The fourth proportional to 5,855.98, 8,081.42 and 3,203.55 is: 4,421.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,855.98 : 8,081.42 = 3,203.55 : x
  2. Step 2: Convert to fraction form
    5,855.98/8,081.42 = 3,203.55/x
  3. Step 3: Cross multiply
    5,855.98x = 8,081.42 × 3,203.55
  4. Step 4: Simplify right side
    5,855.98x = 25,889,247.33
  5. Step 5: Solve for x
    x = 25,889,247.33/5,855.98
  6. Step 6: Final answer
    x = 4,421.00

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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.