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Finding the Fourth Proportional to 3,994.98, 5,512.74 and 2,316.48

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Solution

The fourth proportional to 3,994.98, 5,512.74 and 2,316.48 is: 3,196.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,994.98 : 5,512.74 = 2,316.48 : x
  2. Step 2: Convert to fraction form
    3,994.98/5,512.74 = 2,316.48/x
  3. Step 3: Cross multiply
    3,994.98x = 5,512.74 × 2,316.48
  4. Step 4: Simplify right side
    3,994.98x = 12,770,151.96
  5. Step 5: Solve for x
    x = 12,770,151.96/3,994.98
  6. Step 6: Final answer
    x = 3,196.55

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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.