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Finding the Fourth Proportional to 8,368.97, 12,553.46 and 3,174.85

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Solution

The fourth proportional to 8,368.97, 12,553.46 and 3,174.85 is: 4,762.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,368.97 : 12,553.46 = 3,174.85 : x
  2. Step 2: Convert to fraction form
    8,368.97/12,553.46 = 3,174.85/x
  3. Step 3: Cross multiply
    8,368.97x = 12,553.46 × 3,174.85
  4. Step 4: Simplify right side
    8,368.97x = 39,855,305.22
  5. Step 5: Solve for x
    x = 39,855,305.22/8,368.97
  6. Step 6: Final answer
    x = 4,762.27

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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.