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Finding the Fourth Proportional to 18,151.48, 27,231.54 and 7,058.44

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Solution

The fourth proportional to 18,151.48, 27,231.54 and 7,058.44 is: 10,589.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,151.48 : 27,231.54 = 7,058.44 : x
  2. Step 2: Convert to fraction form
    18,151.48/27,231.54 = 7,058.44/x
  3. Step 3: Cross multiply
    18,151.48x = 27,231.54 × 7,058.44
  4. Step 4: Simplify right side
    18,151.48x = 192,212,191.20
  5. Step 5: Solve for x
    x = 192,212,191.20/18,151.48
  6. Step 6: Final answer
    x = 10,589.34

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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.