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Finding the Fourth Proportional to 4,794.90, 7,176.15 and 4,211.70

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Solution

The fourth proportional to 4,794.90, 7,176.15 and 4,211.70 is: 6,303.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,794.90 : 7,176.15 = 4,211.70 : x
  2. Step 2: Convert to fraction form
    4,794.90/7,176.15 = 4,211.70/x
  3. Step 3: Cross multiply
    4,794.90x = 7,176.15 × 4,211.70
  4. Step 4: Simplify right side
    4,794.90x = 30,223,790.96
  5. Step 5: Solve for x
    x = 30,223,790.96/4,794.90
  6. Step 6: Final answer
    x = 6,303.32

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.