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Finding the Fourth Proportional to 7,813.41, 11,704.41 and 3,647.67

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Solution

The fourth proportional to 7,813.41, 11,704.41 and 3,647.67 is: 5,464.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,813.41 : 11,704.41 = 3,647.67 : x
  2. Step 2: Convert to fraction form
    7,813.41/11,704.41 = 3,647.67/x
  3. Step 3: Cross multiply
    7,813.41x = 11,704.41 × 3,647.67
  4. Step 4: Simplify right side
    7,813.41x = 42,693,825.22
  5. Step 5: Solve for x
    x = 42,693,825.22/7,813.41
  6. Step 6: Final answer
    x = 5,464.17

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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.