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Finding the Fourth Proportional to 18,450.50, 25,461.78 and 10,067

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Solution

The fourth proportional to 18,450.50, 25,461.78 and 10,067 is: 13,892.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,450.50 : 25,461.78 = 10,067 : x
  2. Step 2: Convert to fraction form
    18,450.50/25,461.78 = 10,067/x
  3. Step 3: Cross multiply
    18,450.50x = 25,461.78 × 10,067
  4. Step 4: Simplify right side
    18,450.50x = 256,323,739.26
  5. Step 5: Solve for x
    x = 256,323,739.26/18,450.50
  6. Step 6: Final answer
    x = 13,892.51

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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.