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Finding the Fourth Proportional to 18,203.44, 27,305.36 and 7,673.60

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Solution

The fourth proportional to 18,203.44, 27,305.36 and 7,673.60 is: 11,510.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,203.44 : 27,305.36 = 7,673.60 : x
  2. Step 2: Convert to fraction form
    18,203.44/27,305.36 = 7,673.60/x
  3. Step 3: Cross multiply
    18,203.44x = 27,305.36 × 7,673.60
  4. Step 4: Simplify right side
    18,203.44x = 209,530,410.50
  5. Step 5: Solve for x
    x = 209,530,410.50/18,203.44
  6. Step 6: Final answer
    x = 11,510.48

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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.