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Finding the Fourth Proportional to 12,573.96, 18,860.94 and 6,722.52

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Solution

The fourth proportional to 12,573.96, 18,860.94 and 6,722.52 is: 10,083.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,573.96 : 18,860.94 = 6,722.52 : x
  2. Step 2: Convert to fraction form
    12,573.96/18,860.94 = 6,722.52/x
  3. Step 3: Cross multiply
    12,573.96x = 18,860.94 × 6,722.52
  4. Step 4: Simplify right side
    12,573.96x = 126,793,046.37
  5. Step 5: Solve for x
    x = 126,793,046.37/12,573.96
  6. Step 6: Final answer
    x = 10,083.78

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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.