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Finding the Fourth Proportional to 18,004.52, 27,007.18 and 4,857

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Solution

The fourth proportional to 18,004.52, 27,007.18 and 4,857 is: 7,285.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,004.52 : 27,007.18 = 4,857 : x
  2. Step 2: Convert to fraction form
    18,004.52/27,007.18 = 4,857/x
  3. Step 3: Cross multiply
    18,004.52x = 27,007.18 × 4,857
  4. Step 4: Simplify right side
    18,004.52x = 131,173,873.26
  5. Step 5: Solve for x
    x = 131,173,873.26/18,004.52
  6. Step 6: Final answer
    x = 7,285.61

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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.