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Finding the Fourth Proportional to 8,951.78, 13,418.76 and 3,104.48

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Solution

The fourth proportional to 8,951.78, 13,418.76 and 3,104.48 is: 4,653.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,951.78 : 13,418.76 = 3,104.48 : x
  2. Step 2: Convert to fraction form
    8,951.78/13,418.76 = 3,104.48/x
  3. Step 3: Cross multiply
    8,951.78x = 13,418.76 × 3,104.48
  4. Step 4: Simplify right side
    8,951.78x = 41,658,272.04
  5. Step 5: Solve for x
    x = 41,658,272.04/8,951.78
  6. Step 6: Final answer
    x = 4,653.63

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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.