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Finding the Fourth Proportional to 18,615.82, 27,927.84 and 6,135.34

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Solution

The fourth proportional to 18,615.82, 27,927.84 and 6,135.34 is: 9,204.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,615.82 : 27,927.84 = 6,135.34 : x
  2. Step 2: Convert to fraction form
    18,615.82/27,927.84 = 6,135.34/x
  3. Step 3: Cross multiply
    18,615.82x = 27,927.84 × 6,135.34
  4. Step 4: Simplify right side
    18,615.82x = 171,346,793.87
  5. Step 5: Solve for x
    x = 171,346,793.87/18,615.82
  6. Step 6: Final answer
    x = 9,204.36

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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.