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Finding the Fourth Proportional to 7,540.58, 11,323.74 and 4,912.58

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Solution

The fourth proportional to 7,540.58, 11,323.74 and 4,912.58 is: 7,377.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,540.58 : 11,323.74 = 4,912.58 : x
  2. Step 2: Convert to fraction form
    7,540.58/11,323.74 = 4,912.58/x
  3. Step 3: Cross multiply
    7,540.58x = 11,323.74 × 4,912.58
  4. Step 4: Simplify right side
    7,540.58x = 55,628,778.65
  5. Step 5: Solve for x
    x = 55,628,778.65/7,540.58
  6. Step 6: Final answer
    x = 7,377.25

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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.