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Finding the Fourth Proportional to 36,954, 55,438.29 and 18,896.67

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Solution

The fourth proportional to 36,954, 55,438.29 and 18,896.67 is: 28,348.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,954 : 55,438.29 = 18,896.67 : x
  2. Step 2: Convert to fraction form
    36,954/55,438.29 = 18,896.67/x
  3. Step 3: Cross multiply
    36,954x = 55,438.29 × 18,896.67
  4. Step 4: Simplify right side
    36,954x = 1,047,599,071.49
  5. Step 5: Solve for x
    x = 1,047,599,071.49/36,954
  6. Step 6: Final answer
    x = 28,348.73

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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.