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Finding the Fourth Proportional to 36,955, 55,439.79 and 18,897.67

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Solution

The fourth proportional to 36,955, 55,439.79 and 18,897.67 is: 28,350.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,955 : 55,439.79 = 18,897.67 : x
  2. Step 2: Convert to fraction form
    36,955/55,439.79 = 18,897.67/x
  3. Step 3: Cross multiply
    36,955x = 55,439.79 × 18,897.67
  4. Step 4: Simplify right side
    36,955x = 1,047,682,856.29
  5. Step 5: Solve for x
    x = 1,047,682,856.29/36,955
  6. Step 6: Final answer
    x = 28,350.23

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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.