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Finding the Fourth Proportional to 25,169.94, 37,731.32 and 8,518.31

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Solution

The fourth proportional to 25,169.94, 37,731.32 and 8,518.31 is: 12,769.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,169.94 : 37,731.32 = 8,518.31 : x
  2. Step 2: Convert to fraction form
    25,169.94/37,731.32 = 8,518.31/x
  3. Step 3: Cross multiply
    25,169.94x = 37,731.32 × 8,518.31
  4. Step 4: Simplify right side
    25,169.94x = 321,407,234.90
  5. Step 5: Solve for x
    x = 321,407,234.90/25,169.94
  6. Step 6: Final answer
    x = 12,769.49

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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.