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Finding the Fourth Proportional to 5,907.63, 8,872.39 and 3,961.20

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Solution

The fourth proportional to 5,907.63, 8,872.39 and 3,961.20 is: 5,949.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,907.63 : 8,872.39 = 3,961.20 : x
  2. Step 2: Convert to fraction form
    5,907.63/8,872.39 = 3,961.20/x
  3. Step 3: Cross multiply
    5,907.63x = 8,872.39 × 3,961.20
  4. Step 4: Simplify right side
    5,907.63x = 35,145,327.21
  5. Step 5: Solve for x
    x = 35,145,327.21/5,907.63
  6. Step 6: Final answer
    x = 5,949.14

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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.