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Finding the Fourth Proportional to 18,494.66, 27,744.76 and 6,806.99

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Solution

The fourth proportional to 18,494.66, 27,744.76 and 6,806.99 is: 10,211.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,494.66 : 27,744.76 = 6,806.99 : x
  2. Step 2: Convert to fraction form
    18,494.66/27,744.76 = 6,806.99/x
  3. Step 3: Cross multiply
    18,494.66x = 27,744.76 × 6,806.99
  4. Step 4: Simplify right side
    18,494.66x = 188,858,381.74
  5. Step 5: Solve for x
    x = 188,858,381.74/18,494.66
  6. Step 6: Final answer
    x = 10,211.51

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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.