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Finding the Fourth Proportional to 8,846.28, 13,269.45 and 8,402.85

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Solution

The fourth proportional to 8,846.28, 13,269.45 and 8,402.85 is: 12,604.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,846.28 : 13,269.45 = 8,402.85 : x
  2. Step 2: Convert to fraction form
    8,846.28/13,269.45 = 8,402.85/x
  3. Step 3: Cross multiply
    8,846.28x = 13,269.45 × 8,402.85
  4. Step 4: Simplify right side
    8,846.28x = 111,501,197.93
  5. Step 5: Solve for x
    x = 111,501,197.93/8,846.28
  6. Step 6: Final answer
    x = 12,604.30

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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.