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Finding the Fourth Proportional to 26,143.95, 39,183.81 and 12,084.96

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Solution

The fourth proportional to 26,143.95, 39,183.81 and 12,084.96 is: 18,112.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,143.95 : 39,183.81 = 12,084.96 : x
  2. Step 2: Convert to fraction form
    26,143.95/39,183.81 = 12,084.96/x
  3. Step 3: Cross multiply
    26,143.95x = 39,183.81 × 12,084.96
  4. Step 4: Simplify right side
    26,143.95x = 473,534,776.50
  5. Step 5: Solve for x
    x = 473,534,776.50/26,143.95
  6. Step 6: Final answer
    x = 18,112.59

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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.