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Finding the Fourth Proportional to 18,061.76, 27,100.39 and 6,976.23

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Solution

The fourth proportional to 18,061.76, 27,100.39 and 6,976.23 is: 10,467.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,061.76 : 27,100.39 = 6,976.23 : x
  2. Step 2: Convert to fraction form
    18,061.76/27,100.39 = 6,976.23/x
  3. Step 3: Cross multiply
    18,061.76x = 27,100.39 × 6,976.23
  4. Step 4: Simplify right side
    18,061.76x = 189,058,553.73
  5. Step 5: Solve for x
    x = 189,058,553.73/18,061.76
  6. Step 6: Final answer
    x = 10,467.34

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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.