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Finding the Fourth Proportional to 9,393.68, 12,963.43 and 5,144.67

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Solution

The fourth proportional to 9,393.68, 12,963.43 and 5,144.67 is: 7,099.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,393.68 : 12,963.43 = 5,144.67 : x
  2. Step 2: Convert to fraction form
    9,393.68/12,963.43 = 5,144.67/x
  3. Step 3: Cross multiply
    9,393.68x = 12,963.43 × 5,144.67
  4. Step 4: Simplify right side
    9,393.68x = 66,692,556.56
  5. Step 5: Solve for x
    x = 66,692,556.56/9,393.68
  6. Step 6: Final answer
    x = 7,099.73

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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.