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Finding the Fourth Proportional to 8,009.34, 12,015.42 and 3,326.73

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Solution

The fourth proportional to 8,009.34, 12,015.42 and 3,326.73 is: 4,990.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,009.34 : 12,015.42 = 3,326.73 : x
  2. Step 2: Convert to fraction form
    8,009.34/12,015.42 = 3,326.73/x
  3. Step 3: Cross multiply
    8,009.34x = 12,015.42 × 3,326.73
  4. Step 4: Simplify right side
    8,009.34x = 39,972,058.18
  5. Step 5: Solve for x
    x = 39,972,058.18/8,009.34
  6. Step 6: Final answer
    x = 4,990.68

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Half scale
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Double scale
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Similar ratio
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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.