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Finding the Fourth Proportional to 7,694.59, 10,615.20 and 4,859.99

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Solution

The fourth proportional to 7,694.59, 10,615.20 and 4,859.99 is: 6,704.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,694.59 : 10,615.20 = 4,859.99 : x
  2. Step 2: Convert to fraction form
    7,694.59/10,615.20 = 4,859.99/x
  3. Step 3: Cross multiply
    7,694.59x = 10,615.20 × 4,859.99
  4. Step 4: Simplify right side
    7,694.59x = 51,589,765.85
  5. Step 5: Solve for x
    x = 51,589,765.85/7,694.59
  6. Step 6: Final answer
    x = 6,704.68

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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.