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Finding the Fourth Proportional to 5,523.80, 7,621.80 and 3,286.22

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Solution

The fourth proportional to 5,523.80, 7,621.80 and 3,286.22 is: 4,534.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,523.80 : 7,621.80 = 3,286.22 : x
  2. Step 2: Convert to fraction form
    5,523.80/7,621.80 = 3,286.22/x
  3. Step 3: Cross multiply
    5,523.80x = 7,621.80 × 3,286.22
  4. Step 4: Simplify right side
    5,523.80x = 25,046,911.60
  5. Step 5: Solve for x
    x = 25,046,911.60/5,523.80
  6. Step 6: Final answer
    x = 4,534.36

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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.