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Finding the Fourth Proportional to 6,255.87, 8,623.09 and 4,238.67

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Solution

The fourth proportional to 6,255.87, 8,623.09 and 4,238.67 is: 5,842.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,255.87 : 8,623.09 = 4,238.67 : x
  2. Step 2: Convert to fraction form
    6,255.87/8,623.09 = 4,238.67/x
  3. Step 3: Cross multiply
    6,255.87x = 8,623.09 × 4,238.67
  4. Step 4: Simplify right side
    6,255.87x = 36,550,432.89
  5. Step 5: Solve for x
    x = 36,550,432.89/6,255.87
  6. Step 6: Final answer
    x = 5,842.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.