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Finding the Fourth Proportional to 18,336.85, 27,506.74 and 5,858.65

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Solution

The fourth proportional to 18,336.85, 27,506.74 and 5,858.65 is: 8,788.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,336.85 : 27,506.74 = 5,858.65 : x
  2. Step 2: Convert to fraction form
    18,336.85/27,506.74 = 5,858.65/x
  3. Step 3: Cross multiply
    18,336.85x = 27,506.74 × 5,858.65
  4. Step 4: Simplify right side
    18,336.85x = 161,152,238.30
  5. Step 5: Solve for x
    x = 161,152,238.30/18,336.85
  6. Step 6: Final answer
    x = 8,788.44

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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.