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Finding the Fourth Proportional to 18,596.43, 27,907.61 and 8,202.51

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Solution

The fourth proportional to 18,596.43, 27,907.61 and 8,202.51 is: 12,309.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,596.43 : 27,907.61 = 8,202.51 : x
  2. Step 2: Convert to fraction form
    18,596.43/27,907.61 = 8,202.51/x
  3. Step 3: Cross multiply
    18,596.43x = 27,907.61 × 8,202.51
  4. Step 4: Simplify right side
    18,596.43x = 228,912,409.09
  5. Step 5: Solve for x
    x = 228,912,409.09/18,596.43
  6. Step 6: Final answer
    x = 12,309.48

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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.