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Finding the Fourth Proportional to 5,518.98, 7,616.97 and 3,837.42

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Solution

The fourth proportional to 5,518.98, 7,616.97 and 3,837.42 is: 5,296.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,518.98 : 7,616.97 = 3,837.42 : x
  2. Step 2: Convert to fraction form
    5,518.98/7,616.97 = 3,837.42/x
  3. Step 3: Cross multiply
    5,518.98x = 7,616.97 × 3,837.42
  4. Step 4: Simplify right side
    5,518.98x = 29,229,513.02
  5. Step 5: Solve for x
    x = 29,229,513.02/5,518.98
  6. Step 6: Final answer
    x = 5,296.18

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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.