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Finding the Fourth Proportional to 5,887.44, 8,134.92 and 5,138.64

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Solution

The fourth proportional to 5,887.44, 8,134.92 and 5,138.64 is: 7,100.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,887.44 : 8,134.92 = 5,138.64 : x
  2. Step 2: Convert to fraction form
    5,887.44/8,134.92 = 5,138.64/x
  3. Step 3: Cross multiply
    5,887.44x = 8,134.92 × 5,138.64
  4. Step 4: Simplify right side
    5,887.44x = 41,802,425.31
  5. Step 5: Solve for x
    x = 41,802,425.31/5,887.44
  6. Step 6: Final answer
    x = 7,100.27

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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.