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Finding the Fourth Proportional to 8,813.91, 12,163.40 and 4,835.03

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Solution

The fourth proportional to 8,813.91, 12,163.40 and 4,835.03 is: 6,672.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,813.91 : 12,163.40 = 4,835.03 : x
  2. Step 2: Convert to fraction form
    8,813.91/12,163.40 = 4,835.03/x
  3. Step 3: Cross multiply
    8,813.91x = 12,163.40 × 4,835.03
  4. Step 4: Simplify right side
    8,813.91x = 58,810,337.04
  5. Step 5: Solve for x
    x = 58,810,337.04/8,813.91
  6. Step 6: Final answer
    x = 6,672.44

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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.