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Finding the Fourth Proportional to 2,074.93, 3,112.08 and 842.33

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Solution

The fourth proportional to 2,074.93, 3,112.08 and 842.33 is: 1,263.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,074.93 : 3,112.08 = 842.33 : x
  2. Step 2: Convert to fraction form
    2,074.93/3,112.08 = 842.33/x
  3. Step 3: Cross multiply
    2,074.93x = 3,112.08 × 842.33
  4. Step 4: Simplify right side
    2,074.93x = 2,621,382.79
  5. Step 5: Solve for x
    x = 2,621,382.79/2,074.93
  6. Step 6: Final answer
    x = 1,263.36

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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.