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Finding the Fourth Proportional to 7,448.45, 11,171.45 and 2,517.98

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Solution

The fourth proportional to 7,448.45, 11,171.45 and 2,517.98 is: 3,776.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,448.45 : 11,171.45 = 2,517.98 : x
  2. Step 2: Convert to fraction form
    7,448.45/11,171.45 = 2,517.98/x
  3. Step 3: Cross multiply
    7,448.45x = 11,171.45 × 2,517.98
  4. Step 4: Simplify right side
    7,448.45x = 28,129,487.67
  5. Step 5: Solve for x
    x = 28,129,487.67/7,448.45
  6. Step 6: Final answer
    x = 3,776.56

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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.