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Finding the Fourth Proportional to 13,881.11, 19,027.44 and 13,694.22

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Solution

The fourth proportional to 13,881.11, 19,027.44 and 13,694.22 is: 18,771.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,881.11 : 19,027.44 = 13,694.22 : x
  2. Step 2: Convert to fraction form
    13,881.11/19,027.44 = 13,694.22/x
  3. Step 3: Cross multiply
    13,881.11x = 19,027.44 × 13,694.22
  4. Step 4: Simplify right side
    13,881.11x = 260,565,949.40
  5. Step 5: Solve for x
    x = 260,565,949.40/13,881.11
  6. Step 6: Final answer
    x = 18,771.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.