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Finding the Fourth Proportional to 11,408.81, 17,103.22 and 5,482.73

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Solution

The fourth proportional to 11,408.81, 17,103.22 and 5,482.73 is: 8,219.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,408.81 : 17,103.22 = 5,482.73 : x
  2. Step 2: Convert to fraction form
    11,408.81/17,103.22 = 5,482.73/x
  3. Step 3: Cross multiply
    11,408.81x = 17,103.22 × 5,482.73
  4. Step 4: Simplify right side
    11,408.81x = 93,772,366.44
  5. Step 5: Solve for x
    x = 93,772,366.44/11,408.81
  6. Step 6: Final answer
    x = 8,219.30

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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.