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Finding the Fourth Proportional to 36,576.72, 50,475 and 20,660.64

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Solution

The fourth proportional to 36,576.72, 50,475 and 20,660.64 is: 28,511.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,576.72 : 50,475 = 20,660.64 : x
  2. Step 2: Convert to fraction form
    36,576.72/50,475 = 20,660.64/x
  3. Step 3: Cross multiply
    36,576.72x = 50,475 × 20,660.64
  4. Step 4: Simplify right side
    36,576.72x = 1,042,845,804
  5. Step 5: Solve for x
    x = 1,042,845,804/36,576.72
  6. Step 6: Final answer
    x = 28,511.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.