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Finding the Fourth Proportional to 8,940.57, 13,402.54 and 4,783.44

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Solution

The fourth proportional to 8,940.57, 13,402.54 and 4,783.44 is: 7,170.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,940.57 : 13,402.54 = 4,783.44 : x
  2. Step 2: Convert to fraction form
    8,940.57/13,402.54 = 4,783.44/x
  3. Step 3: Cross multiply
    8,940.57x = 13,402.54 × 4,783.44
  4. Step 4: Simplify right side
    8,940.57x = 64,110,245.94
  5. Step 5: Solve for x
    x = 64,110,245.94/8,940.57
  6. Step 6: Final answer
    x = 7,170.71

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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.