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Finding the Fourth Proportional to 3,866.15, 5,799.63 and 1,269.29

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Solution

The fourth proportional to 3,866.15, 5,799.63 and 1,269.29 is: 1,904.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,866.15 : 5,799.63 = 1,269.29 : x
  2. Step 2: Convert to fraction form
    3,866.15/5,799.63 = 1,269.29/x
  3. Step 3: Cross multiply
    3,866.15x = 5,799.63 × 1,269.29
  4. Step 4: Simplify right side
    3,866.15x = 7,361,383.36
  5. Step 5: Solve for x
    x = 7,361,383.36/3,866.15
  6. Step 6: Final answer
    x = 1,904.06

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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.