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Finding the Fourth Proportional to 13,684.62, 18,847.02 and 11,795.51

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Solution

The fourth proportional to 13,684.62, 18,847.02 and 11,795.51 is: 16,245.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,684.62 : 18,847.02 = 11,795.51 : x
  2. Step 2: Convert to fraction form
    13,684.62/18,847.02 = 11,795.51/x
  3. Step 3: Cross multiply
    13,684.62x = 18,847.02 × 11,795.51
  4. Step 4: Simplify right side
    13,684.62x = 222,310,212.88
  5. Step 5: Solve for x
    x = 222,310,212.88/13,684.62
  6. Step 6: Final answer
    x = 16,245.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.