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Finding the Fourth Proportional to 18,241.91, 25,172.07 and 11,525.09

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Solution

The fourth proportional to 18,241.91, 25,172.07 and 11,525.09 is: 15,903.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,241.91 : 25,172.07 = 11,525.09 : x
  2. Step 2: Convert to fraction form
    18,241.91/25,172.07 = 11,525.09/x
  3. Step 3: Cross multiply
    18,241.91x = 25,172.07 × 11,525.09
  4. Step 4: Simplify right side
    18,241.91x = 290,110,203.16
  5. Step 5: Solve for x
    x = 290,110,203.16/18,241.91
  6. Step 6: Final answer
    x = 15,903.50

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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.