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Finding the Fourth Proportional to 18,437.24, 27,629.94 and 8,027.12

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Solution

The fourth proportional to 18,437.24, 27,629.94 and 8,027.12 is: 12,029.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,437.24 : 27,629.94 = 8,027.12 : x
  2. Step 2: Convert to fraction form
    18,437.24/27,629.94 = 8,027.12/x
  3. Step 3: Cross multiply
    18,437.24x = 27,629.94 × 8,027.12
  4. Step 4: Simplify right side
    18,437.24x = 221,788,843.97
  5. Step 5: Solve for x
    x = 221,788,843.97/18,437.24
  6. Step 6: Final answer
    x = 12,029.40

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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.