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Finding the Fourth Proportional to 6,381.52, 9,551.80 and 3,412.54

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Solution

The fourth proportional to 6,381.52, 9,551.80 and 3,412.54 is: 5,107.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,381.52 : 9,551.80 = 3,412.54 : x
  2. Step 2: Convert to fraction form
    6,381.52/9,551.80 = 3,412.54/x
  3. Step 3: Cross multiply
    6,381.52x = 9,551.80 × 3,412.54
  4. Step 4: Simplify right side
    6,381.52x = 32,595,899.57
  5. Step 5: Solve for x
    x = 32,595,899.57/6,381.52
  6. Step 6: Final answer
    x = 5,107.86

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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.