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Finding the Fourth Proportional to 18,076.74, 27,115.17 and 9,314.22

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Solution

The fourth proportional to 18,076.74, 27,115.17 and 9,314.22 is: 13,971.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,076.74 : 27,115.17 = 9,314.22 : x
  2. Step 2: Convert to fraction form
    18,076.74/27,115.17 = 9,314.22/x
  3. Step 3: Cross multiply
    18,076.74x = 27,115.17 × 9,314.22
  4. Step 4: Simplify right side
    18,076.74x = 252,556,658.72
  5. Step 5: Solve for x
    x = 252,556,658.72/18,076.74
  6. Step 6: Final answer
    x = 13,971.36

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Similar ratio
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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.