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Finding the Fourth Proportional to 18,617.49, 27,940.10 and 7,524.29

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Solution

The fourth proportional to 18,617.49, 27,940.10 and 7,524.29 is: 11,292.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,617.49 : 27,940.10 = 7,524.29 : x
  2. Step 2: Convert to fraction form
    18,617.49/27,940.10 = 7,524.29/x
  3. Step 3: Cross multiply
    18,617.49x = 27,940.10 × 7,524.29
  4. Step 4: Simplify right side
    18,617.49x = 210,229,237.71
  5. Step 5: Solve for x
    x = 210,229,237.71/18,617.49
  6. Step 6: Final answer
    x = 11,292.03

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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.