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Finding the Fourth Proportional to 18,157.96, 27,228.30 and 10,364.68

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Solution

The fourth proportional to 18,157.96, 27,228.30 and 10,364.68 is: 15,542.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,157.96 : 27,228.30 = 10,364.68 : x
  2. Step 2: Convert to fraction form
    18,157.96/27,228.30 = 10,364.68/x
  3. Step 3: Cross multiply
    18,157.96x = 27,228.30 × 10,364.68
  4. Step 4: Simplify right side
    18,157.96x = 282,212,616.44
  5. Step 5: Solve for x
    x = 282,212,616.44/18,157.96
  6. Step 6: Final answer
    x = 15,542.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.