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Finding the Fourth Proportional to 18,653.24, 27,942.38 and 9,264.86

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Solution

The fourth proportional to 18,653.24, 27,942.38 and 9,264.86 is: 13,878.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,653.24 : 27,942.38 = 9,264.86 : x
  2. Step 2: Convert to fraction form
    18,653.24/27,942.38 = 9,264.86/x
  3. Step 3: Cross multiply
    18,653.24x = 27,942.38 × 9,264.86
  4. Step 4: Simplify right side
    18,653.24x = 258,882,238.77
  5. Step 5: Solve for x
    x = 258,882,238.77/18,653.24
  6. Step 6: Final answer
    x = 13,878.67

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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.