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Finding the Fourth Proportional to 18,636.08, 27,954.18 and 6,949.13

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Solution

The fourth proportional to 18,636.08, 27,954.18 and 6,949.13 is: 10,423.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,636.08 : 27,954.18 = 6,949.13 : x
  2. Step 2: Convert to fraction form
    18,636.08/27,954.18 = 6,949.13/x
  3. Step 3: Cross multiply
    18,636.08x = 27,954.18 × 6,949.13
  4. Step 4: Simplify right side
    18,636.08x = 194,257,091.09
  5. Step 5: Solve for x
    x = 194,257,091.09/18,636.08
  6. Step 6: Final answer
    x = 10,423.71

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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.