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Finding the Fourth Proportional to 12,698.46, 19,069.44 and 7,796.88

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Solution

The fourth proportional to 12,698.46, 19,069.44 and 7,796.88 is: 11,708.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,698.46 : 19,069.44 = 7,796.88 : x
  2. Step 2: Convert to fraction form
    12,698.46/19,069.44 = 7,796.88/x
  3. Step 3: Cross multiply
    12,698.46x = 19,069.44 × 7,796.88
  4. Step 4: Simplify right side
    12,698.46x = 148,682,135.35
  5. Step 5: Solve for x
    x = 148,682,135.35/12,698.46
  6. Step 6: Final answer
    x = 11,708.67

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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.