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Finding the Fourth Proportional to 12,448.44, 18,675.22 and 8,554.68

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Solution

The fourth proportional to 12,448.44, 18,675.22 and 8,554.68 is: 12,833.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,448.44 : 18,675.22 = 8,554.68 : x
  2. Step 2: Convert to fraction form
    12,448.44/18,675.22 = 8,554.68/x
  3. Step 3: Cross multiply
    12,448.44x = 18,675.22 × 8,554.68
  4. Step 4: Simplify right side
    12,448.44x = 159,760,531.03
  5. Step 5: Solve for x
    x = 159,760,531.03/12,448.44
  6. Step 6: Final answer
    x = 12,833.78

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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.