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Finding the Fourth Proportional to 12,443.27, 17,170.93 and 6,854.27

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Solution

The fourth proportional to 12,443.27, 17,170.93 and 6,854.27 is: 9,458.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,443.27 : 17,170.93 = 6,854.27 : x
  2. Step 2: Convert to fraction form
    12,443.27/17,170.93 = 6,854.27/x
  3. Step 3: Cross multiply
    12,443.27x = 17,170.93 × 6,854.27
  4. Step 4: Simplify right side
    12,443.27x = 117,694,190.37
  5. Step 5: Solve for x
    x = 117,694,190.37/12,443.27
  6. Step 6: Final answer
    x = 9,458.46

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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.