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Finding the Fourth Proportional to 6,379.75, 9,562.74 and 3,085.89

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Solution

The fourth proportional to 6,379.75, 9,562.74 and 3,085.89 is: 4,625.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,379.75 : 9,562.74 = 3,085.89 : x
  2. Step 2: Convert to fraction form
    6,379.75/9,562.74 = 3,085.89/x
  3. Step 3: Cross multiply
    6,379.75x = 9,562.74 × 3,085.89
  4. Step 4: Simplify right side
    6,379.75x = 29,509,563.74
  5. Step 5: Solve for x
    x = 29,509,563.74/6,379.75
  6. Step 6: Final answer
    x = 4,625.50

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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.