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Finding the Fourth Proportional to 36,672.40, 54,911.40 and 28,896.40

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Solution

The fourth proportional to 36,672.40, 54,911.40 and 28,896.40 is: 43,268.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,672.40 : 54,911.40 = 28,896.40 : x
  2. Step 2: Convert to fraction form
    36,672.40/54,911.40 = 28,896.40/x
  3. Step 3: Cross multiply
    36,672.40x = 54,911.40 × 28,896.40
  4. Step 4: Simplify right side
    36,672.40x = 1,586,741,778.96
  5. Step 5: Solve for x
    x = 1,586,741,778.96/36,672.40
  6. Step 6: Final answer
    x = 43,268.01

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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.