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Finding the Fourth Proportional to 19,635.31, 27,096.12 and 11,138.21

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Solution

The fourth proportional to 19,635.31, 27,096.12 and 11,138.21 is: 15,370.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,635.31 : 27,096.12 = 11,138.21 : x
  2. Step 2: Convert to fraction form
    19,635.31/27,096.12 = 11,138.21/x
  3. Step 3: Cross multiply
    19,635.31x = 27,096.12 × 11,138.21
  4. Step 4: Simplify right side
    19,635.31x = 301,802,240.88
  5. Step 5: Solve for x
    x = 301,802,240.88/19,635.31
  6. Step 6: Final answer
    x = 15,370.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.