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Finding the Fourth Proportional to 12,424.67, 18,615.13 and 11,068.73

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Solution

The fourth proportional to 12,424.67, 18,615.13 and 11,068.73 is: 16,583.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,424.67 : 18,615.13 = 11,068.73 : x
  2. Step 2: Convert to fraction form
    12,424.67/18,615.13 = 11,068.73/x
  3. Step 3: Cross multiply
    12,424.67x = 18,615.13 × 11,068.73
  4. Step 4: Simplify right side
    12,424.67x = 206,045,847.88
  5. Step 5: Solve for x
    x = 206,045,847.88/12,424.67
  6. Step 6: Final answer
    x = 16,583.61

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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.