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Finding the Fourth Proportional to 4,241.98, 5,847.78 and 2,979.19

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Solution

The fourth proportional to 4,241.98, 5,847.78 and 2,979.19 is: 4,106.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,241.98 : 5,847.78 = 2,979.19 : x
  2. Step 2: Convert to fraction form
    4,241.98/5,847.78 = 2,979.19/x
  3. Step 3: Cross multiply
    4,241.98x = 5,847.78 × 2,979.19
  4. Step 4: Simplify right side
    4,241.98x = 17,421,647.70
  5. Step 5: Solve for x
    x = 17,421,647.70/4,241.98
  6. Step 6: Final answer
    x = 4,106.96

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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.