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Finding the Fourth Proportional to 18,481.94, 27,698.78 and 8,483.06

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Solution

The fourth proportional to 18,481.94, 27,698.78 and 8,483.06 is: 12,713.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,481.94 : 27,698.78 = 8,483.06 : x
  2. Step 2: Convert to fraction form
    18,481.94/27,698.78 = 8,483.06/x
  3. Step 3: Cross multiply
    18,481.94x = 27,698.78 × 8,483.06
  4. Step 4: Simplify right side
    18,481.94x = 234,970,412.67
  5. Step 5: Solve for x
    x = 234,970,412.67/18,481.94
  6. Step 6: Final answer
    x = 12,713.51

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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.