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Finding the Fourth Proportional to 18,275.35, 27,418.62 and 8,914.04

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Solution

The fourth proportional to 18,275.35, 27,418.62 and 8,914.04 is: 13,373.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,275.35 : 27,418.62 = 8,914.04 : x
  2. Step 2: Convert to fraction form
    18,275.35/27,418.62 = 8,914.04/x
  3. Step 3: Cross multiply
    18,275.35x = 27,418.62 × 8,914.04
  4. Step 4: Simplify right side
    18,275.35x = 244,410,675.42
  5. Step 5: Solve for x
    x = 244,410,675.42/18,275.35
  6. Step 6: Final answer
    x = 13,373.79

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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.