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Finding the Fourth Proportional to 7,594.78, 11,391.20 and 3,211.68

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Solution

The fourth proportional to 7,594.78, 11,391.20 and 3,211.68 is: 4,817.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,594.78 : 11,391.20 = 3,211.68 : x
  2. Step 2: Convert to fraction form
    7,594.78/11,391.20 = 3,211.68/x
  3. Step 3: Cross multiply
    7,594.78x = 11,391.20 × 3,211.68
  4. Step 4: Simplify right side
    7,594.78x = 36,584,889.22
  5. Step 5: Solve for x
    x = 36,584,889.22/7,594.78
  6. Step 6: Final answer
    x = 4,817.11

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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.