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Finding the Fourth Proportional to 18,427.29, 27,645.05 and 7,334.47

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Solution

The fourth proportional to 18,427.29, 27,645.05 and 7,334.47 is: 11,003.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,427.29 : 27,645.05 = 7,334.47 : x
  2. Step 2: Convert to fraction form
    18,427.29/27,645.05 = 7,334.47/x
  3. Step 3: Cross multiply
    18,427.29x = 27,645.05 × 7,334.47
  4. Step 4: Simplify right side
    18,427.29x = 202,761,789.87
  5. Step 5: Solve for x
    x = 202,761,789.87/18,427.29
  6. Step 6: Final answer
    x = 11,003.34

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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.