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Finding the Fourth Proportional to 12,616.11, 18,924.15 and 5,861.01

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Solution

The fourth proportional to 12,616.11, 18,924.15 and 5,861.01 is: 8,791.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,616.11 : 18,924.15 = 5,861.01 : x
  2. Step 2: Convert to fraction form
    12,616.11/18,924.15 = 5,861.01/x
  3. Step 3: Cross multiply
    12,616.11x = 18,924.15 × 5,861.01
  4. Step 4: Simplify right side
    12,616.11x = 110,914,632.39
  5. Step 5: Solve for x
    x = 110,914,632.39/12,616.11
  6. Step 6: Final answer
    x = 8,791.51

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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.