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Finding the Fourth Proportional to 8,814.10, 12,163.39 and 4,835.20

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Solution

The fourth proportional to 8,814.10, 12,163.39 and 4,835.20 is: 6,672.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,814.10 : 12,163.39 = 4,835.20 : x
  2. Step 2: Convert to fraction form
    8,814.10/12,163.39 = 4,835.20/x
  3. Step 3: Cross multiply
    8,814.10x = 12,163.39 × 4,835.20
  4. Step 4: Simplify right side
    8,814.10x = 58,812,380.83
  5. Step 5: Solve for x
    x = 58,812,380.83/8,814.10
  6. Step 6: Final answer
    x = 6,672.54

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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.