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Finding the Fourth Proportional to 69,238.08, 103,896 and 27,688.32

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Solution

The fourth proportional to 69,238.08, 103,896 and 27,688.32 is: 41,548.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,238.08 : 103,896 = 27,688.32 : x
  2. Step 2: Convert to fraction form
    69,238.08/103,896 = 27,688.32/x
  3. Step 3: Cross multiply
    69,238.08x = 103,896 × 27,688.32
  4. Step 4: Simplify right side
    69,238.08x = 2,876,705,694.72
  5. Step 5: Solve for x
    x = 2,876,705,694.72/69,238.08
  6. Step 6: Final answer
    x = 41,548.03

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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.