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Finding the Fourth Proportional to 18,104.64, 27,160.43 and 6,257.99

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Solution

The fourth proportional to 18,104.64, 27,160.43 and 6,257.99 is: 9,388.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,104.64 : 27,160.43 = 6,257.99 : x
  2. Step 2: Convert to fraction form
    18,104.64/27,160.43 = 6,257.99/x
  3. Step 3: Cross multiply
    18,104.64x = 27,160.43 × 6,257.99
  4. Step 4: Simplify right side
    18,104.64x = 169,969,532.24
  5. Step 5: Solve for x
    x = 169,969,532.24/18,104.64
  6. Step 6: Final answer
    x = 9,388.18

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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.