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Finding the Fourth Proportional to 22,616.39, 33,918.11 and 7,621.88

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Solution

The fourth proportional to 22,616.39, 33,918.11 and 7,621.88 is: 11,430.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,616.39 : 33,918.11 = 7,621.88 : x
  2. Step 2: Convert to fraction form
    22,616.39/33,918.11 = 7,621.88/x
  3. Step 3: Cross multiply
    22,616.39x = 33,918.11 × 7,621.88
  4. Step 4: Simplify right side
    22,616.39x = 258,519,556.55
  5. Step 5: Solve for x
    x = 258,519,556.55/22,616.39
  6. Step 6: Final answer
    x = 11,430.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.