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Finding the Fourth Proportional to 7,710.20, 11,576.10 and 4,794.20

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Solution

The fourth proportional to 7,710.20, 11,576.10 and 4,794.20 is: 7,198.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,710.20 : 11,576.10 = 4,794.20 : x
  2. Step 2: Convert to fraction form
    7,710.20/11,576.10 = 4,794.20/x
  3. Step 3: Cross multiply
    7,710.20x = 11,576.10 × 4,794.20
  4. Step 4: Simplify right side
    7,710.20x = 55,498,138.62
  5. Step 5: Solve for x
    x = 55,498,138.62/7,710.20
  6. Step 6: Final answer
    x = 7,198.02

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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.