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Finding the Fourth Proportional to 13,231.94, 19,845.03 and 6,651.14

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Solution

The fourth proportional to 13,231.94, 19,845.03 and 6,651.14 is: 9,975.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,231.94 : 19,845.03 = 6,651.14 : x
  2. Step 2: Convert to fraction form
    13,231.94/19,845.03 = 6,651.14/x
  3. Step 3: Cross multiply
    13,231.94x = 19,845.03 × 6,651.14
  4. Step 4: Simplify right side
    13,231.94x = 131,992,072.83
  5. Step 5: Solve for x
    x = 131,992,072.83/13,231.94
  6. Step 6: Final answer
    x = 9,975.26

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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.