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Finding the Fourth Proportional to 6,074.18, 8,383.92 and 3,955

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Solution

The fourth proportional to 6,074.18, 8,383.92 and 3,955 is: 5,458.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,074.18 : 8,383.92 = 3,955 : x
  2. Step 2: Convert to fraction form
    6,074.18/8,383.92 = 3,955/x
  3. Step 3: Cross multiply
    6,074.18x = 8,383.92 × 3,955
  4. Step 4: Simplify right side
    6,074.18x = 33,158,403.60
  5. Step 5: Solve for x
    x = 33,158,403.60/6,074.18
  6. Step 6: Final answer
    x = 5,458.91

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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.