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Finding the Fourth Proportional to 18,589.98, 27,880.71 and 11,095.66

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Solution

The fourth proportional to 18,589.98, 27,880.71 and 11,095.66 is: 16,640.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,589.98 : 27,880.71 = 11,095.66 : x
  2. Step 2: Convert to fraction form
    18,589.98/27,880.71 = 11,095.66/x
  3. Step 3: Cross multiply
    18,589.98x = 27,880.71 × 11,095.66
  4. Step 4: Simplify right side
    18,589.98x = 309,354,878.72
  5. Step 5: Solve for x
    x = 309,354,878.72/18,589.98
  6. Step 6: Final answer
    x = 16,640.95

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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.