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Finding the Fourth Proportional to 12,804.75, 17,659.22 and 8,324.37

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Solution

The fourth proportional to 12,804.75, 17,659.22 and 8,324.37 is: 11,480.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,804.75 : 17,659.22 = 8,324.37 : x
  2. Step 2: Convert to fraction form
    12,804.75/17,659.22 = 8,324.37/x
  3. Step 3: Cross multiply
    12,804.75x = 17,659.22 × 8,324.37
  4. Step 4: Simplify right side
    12,804.75x = 147,001,839.57
  5. Step 5: Solve for x
    x = 147,001,839.57/12,804.75
  6. Step 6: Final answer
    x = 11,480.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.