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Finding the Fourth Proportional to 13,954.63, 19,254.75 and 8,650.75

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Solution

The fourth proportional to 13,954.63, 19,254.75 and 8,650.75 is: 11,936.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,954.63 : 19,254.75 = 8,650.75 : x
  2. Step 2: Convert to fraction form
    13,954.63/19,254.75 = 8,650.75/x
  3. Step 3: Cross multiply
    13,954.63x = 19,254.75 × 8,650.75
  4. Step 4: Simplify right side
    13,954.63x = 166,568,028.56
  5. Step 5: Solve for x
    x = 166,568,028.56/13,954.63
  6. Step 6: Final answer
    x = 11,936.40

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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.