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Finding the Fourth Proportional to 3,951.50, 5,928.08 and 1,354.64

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Solution

The fourth proportional to 3,951.50, 5,928.08 and 1,354.64 is: 2,032.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,951.50 : 5,928.08 = 1,354.64 : x
  2. Step 2: Convert to fraction form
    3,951.50/5,928.08 = 1,354.64/x
  3. Step 3: Cross multiply
    3,951.50x = 5,928.08 × 1,354.64
  4. Step 4: Simplify right side
    3,951.50x = 8,030,377.88
  5. Step 5: Solve for x
    x = 8,030,377.88/3,951.50
  6. Step 6: Final answer
    x = 2,032.24

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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.