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Finding the Fourth Proportional to 18,647.36, 27,964.32 and 6,332.48

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Solution

The fourth proportional to 18,647.36, 27,964.32 and 6,332.48 is: 9,496.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,647.36 : 27,964.32 = 6,332.48 : x
  2. Step 2: Convert to fraction form
    18,647.36/27,964.32 = 6,332.48/x
  3. Step 3: Cross multiply
    18,647.36x = 27,964.32 × 6,332.48
  4. Step 4: Simplify right side
    18,647.36x = 177,083,497.11
  5. Step 5: Solve for x
    x = 177,083,497.11/18,647.36
  6. Step 6: Final answer
    x = 9,496.44

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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.