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Finding the Fourth Proportional to 18,266.74, 27,400.65 and 7,176.22

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Solution

The fourth proportional to 18,266.74, 27,400.65 and 7,176.22 is: 10,764.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,266.74 : 27,400.65 = 7,176.22 : x
  2. Step 2: Convert to fraction form
    18,266.74/27,400.65 = 7,176.22/x
  3. Step 3: Cross multiply
    18,266.74x = 27,400.65 × 7,176.22
  4. Step 4: Simplify right side
    18,266.74x = 196,633,092.54
  5. Step 5: Solve for x
    x = 196,633,092.54/18,266.74
  6. Step 6: Final answer
    x = 10,764.54

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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.