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Finding the Fourth Proportional to 5,889.85, 8,128.76 and 3,372.37

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Solution

The fourth proportional to 5,889.85, 8,128.76 and 3,372.37 is: 4,654.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,889.85 : 8,128.76 = 3,372.37 : x
  2. Step 2: Convert to fraction form
    5,889.85/8,128.76 = 3,372.37/x
  3. Step 3: Cross multiply
    5,889.85x = 8,128.76 × 3,372.37
  4. Step 4: Simplify right side
    5,889.85x = 27,413,149.18
  5. Step 5: Solve for x
    x = 27,413,149.18/5,889.85
  6. Step 6: Final answer
    x = 4,654.31

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1.5x scale

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.