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Finding the Fourth Proportional to 18,378.94, 27,544.11 and 6,680.92

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Solution

The fourth proportional to 18,378.94, 27,544.11 and 6,680.92 is: 10,012.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,378.94 : 27,544.11 = 6,680.92 : x
  2. Step 2: Convert to fraction form
    18,378.94/27,544.11 = 6,680.92/x
  3. Step 3: Cross multiply
    18,378.94x = 27,544.11 × 6,680.92
  4. Step 4: Simplify right side
    18,378.94x = 184,019,995.38
  5. Step 5: Solve for x
    x = 184,019,995.38/18,378.94
  6. Step 6: Final answer
    x = 10,012.55

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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.