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Finding the Fourth Proportional to 11,842.21, 16,348.14 and 7,367.41

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Solution

The fourth proportional to 11,842.21, 16,348.14 and 7,367.41 is: 10,170.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,842.21 : 16,348.14 = 7,367.41 : x
  2. Step 2: Convert to fraction form
    11,842.21/16,348.14 = 7,367.41/x
  3. Step 3: Cross multiply
    11,842.21x = 16,348.14 × 7,367.41
  4. Step 4: Simplify right side
    11,842.21x = 120,443,450.12
  5. Step 5: Solve for x
    x = 120,443,450.12/11,842.21
  6. Step 6: Final answer
    x = 10,170.69

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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.