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Finding the Fourth Proportional to 63,171.24, 87,168.84 and 37,679

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Solution

The fourth proportional to 63,171.24, 87,168.84 and 37,679 is: 51,992.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,171.24 : 87,168.84 = 37,679 : x
  2. Step 2: Convert to fraction form
    63,171.24/87,168.84 = 37,679/x
  3. Step 3: Cross multiply
    63,171.24x = 87,168.84 × 37,679
  4. Step 4: Simplify right side
    63,171.24x = 3,284,434,722.36
  5. Step 5: Solve for x
    x = 3,284,434,722.36/63,171.24
  6. Step 6: Final answer
    x = 51,992.56

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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.