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Finding the Fourth Proportional to 12,392.96, 18,588.08 and 3,627.96

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Solution

The fourth proportional to 12,392.96, 18,588.08 and 3,627.96 is: 5,441.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,392.96 : 18,588.08 = 3,627.96 : x
  2. Step 2: Convert to fraction form
    12,392.96/18,588.08 = 3,627.96/x
  3. Step 3: Cross multiply
    12,392.96x = 18,588.08 × 3,627.96
  4. Step 4: Simplify right side
    12,392.96x = 67,436,810.72
  5. Step 5: Solve for x
    x = 67,436,810.72/12,392.96
  6. Step 6: Final answer
    x = 5,441.54

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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.