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Finding the Fourth Proportional to 36,916.70, 55,383.15 and 18,205.70

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Solution

The fourth proportional to 36,916.70, 55,383.15 and 18,205.70 is: 27,312.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,916.70 : 55,383.15 = 18,205.70 : x
  2. Step 2: Convert to fraction form
    36,916.70/55,383.15 = 18,205.70/x
  3. Step 3: Cross multiply
    36,916.70x = 55,383.15 × 18,205.70
  4. Step 4: Simplify right side
    36,916.70x = 1,008,289,013.96
  5. Step 5: Solve for x
    x = 1,008,289,013.96/36,916.70
  6. Step 6: Final answer
    x = 27,312.54

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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.