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Finding the Fourth Proportional to 4,834.86, 7,260.48 and 2,647.86

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Solution

The fourth proportional to 4,834.86, 7,260.48 and 2,647.86 is: 3,976.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,834.86 : 7,260.48 = 2,647.86 : x
  2. Step 2: Convert to fraction form
    4,834.86/7,260.48 = 2,647.86/x
  3. Step 3: Cross multiply
    4,834.86x = 7,260.48 × 2,647.86
  4. Step 4: Simplify right side
    4,834.86x = 19,224,734.57
  5. Step 5: Solve for x
    x = 19,224,734.57/4,834.86
  6. Step 6: Final answer
    x = 3,976.28

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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.