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Finding the Fourth Proportional to 4,993.43, 6,893.43 and 3,105.63

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Solution

The fourth proportional to 4,993.43, 6,893.43 and 3,105.63 is: 4,287.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,993.43 : 6,893.43 = 3,105.63 : x
  2. Step 2: Convert to fraction form
    4,993.43/6,893.43 = 3,105.63/x
  3. Step 3: Cross multiply
    4,993.43x = 6,893.43 × 3,105.63
  4. Step 4: Simplify right side
    4,993.43x = 21,408,430.24
  5. Step 5: Solve for x
    x = 21,408,430.24/4,993.43
  6. Step 6: Final answer
    x = 4,287.32

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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.