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Finding the Fourth Proportional to 13,960.98, 20,934.09 and 8,036.64

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Solution

The fourth proportional to 13,960.98, 20,934.09 and 8,036.64 is: 12,050.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,960.98 : 20,934.09 = 8,036.64 : x
  2. Step 2: Convert to fraction form
    13,960.98/20,934.09 = 8,036.64/x
  3. Step 3: Cross multiply
    13,960.98x = 20,934.09 × 8,036.64
  4. Step 4: Simplify right side
    13,960.98x = 168,239,745.06
  5. Step 5: Solve for x
    x = 168,239,745.06/13,960.98
  6. Step 6: Final answer
    x = 12,050.71

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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.