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Finding the Fourth Proportional to 18,058.75, 27,093.53 and 7,671.31

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Solution

The fourth proportional to 18,058.75, 27,093.53 and 7,671.31 is: 11,509.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,058.75 : 27,093.53 = 7,671.31 : x
  2. Step 2: Convert to fraction form
    18,058.75/27,093.53 = 7,671.31/x
  3. Step 3: Cross multiply
    18,058.75x = 27,093.53 × 7,671.31
  4. Step 4: Simplify right side
    18,058.75x = 207,842,867.62
  5. Step 5: Solve for x
    x = 207,842,867.62/18,058.75
  6. Step 6: Final answer
    x = 11,509.26

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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.