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Finding the Fourth Proportional to 3,951.64, 5,928.36 and 1,486.48

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Solution

The fourth proportional to 3,951.64, 5,928.36 and 1,486.48 is: 2,230.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,951.64 : 5,928.36 = 1,486.48 : x
  2. Step 2: Convert to fraction form
    3,951.64/5,928.36 = 1,486.48/x
  3. Step 3: Cross multiply
    3,951.64x = 5,928.36 × 1,486.48
  4. Step 4: Simplify right side
    3,951.64x = 8,812,388.57
  5. Step 5: Solve for x
    x = 8,812,388.57/3,951.64
  6. Step 6: Final answer
    x = 2,230.06

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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.