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Finding the Fourth Proportional to 18,464.06, 27,705.32 and 8,604.11

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Solution

The fourth proportional to 18,464.06, 27,705.32 and 8,604.11 is: 12,910.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,464.06 : 27,705.32 = 8,604.11 : x
  2. Step 2: Convert to fraction form
    18,464.06/27,705.32 = 8,604.11/x
  3. Step 3: Cross multiply
    18,464.06x = 27,705.32 × 8,604.11
  4. Step 4: Simplify right side
    18,464.06x = 238,379,620.87
  5. Step 5: Solve for x
    x = 238,379,620.87/18,464.06
  6. Step 6: Final answer
    x = 12,910.47

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1.5x scale

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.