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Finding the Fourth Proportional to 8,245.99, 12,371.72 and 5,483.54

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Solution

The fourth proportional to 8,245.99, 12,371.72 and 5,483.54 is: 8,227.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,245.99 : 12,371.72 = 5,483.54 : x
  2. Step 2: Convert to fraction form
    8,245.99/12,371.72 = 5,483.54/x
  3. Step 3: Cross multiply
    8,245.99x = 12,371.72 × 5,483.54
  4. Step 4: Simplify right side
    8,245.99x = 67,840,759.63
  5. Step 5: Solve for x
    x = 67,840,759.63/8,245.99
  6. Step 6: Final answer
    x = 8,227.12

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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.