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Finding the Fourth Proportional to 12,016.95, 18,025.42 and 8,750.82

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Solution

The fourth proportional to 12,016.95, 18,025.42 and 8,750.82 is: 13,126.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,016.95 : 18,025.42 = 8,750.82 : x
  2. Step 2: Convert to fraction form
    12,016.95/18,025.42 = 8,750.82/x
  3. Step 3: Cross multiply
    12,016.95x = 18,025.42 × 8,750.82
  4. Step 4: Simplify right side
    12,016.95x = 157,737,183.97
  5. Step 5: Solve for x
    x = 157,737,183.97/12,016.95
  6. Step 6: Final answer
    x = 13,126.22

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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.