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Finding the Fourth Proportional to 18,616.21, 27,918.31 and 6,133.27

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Solution

The fourth proportional to 18,616.21, 27,918.31 and 6,133.27 is: 9,197.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,616.21 : 27,918.31 = 6,133.27 : x
  2. Step 2: Convert to fraction form
    18,616.21/27,918.31 = 6,133.27/x
  3. Step 3: Cross multiply
    18,616.21x = 27,918.31 × 6,133.27
  4. Step 4: Simplify right side
    18,616.21x = 171,230,533.17
  5. Step 5: Solve for x
    x = 171,230,533.17/18,616.21
  6. Step 6: Final answer
    x = 9,197.93

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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.