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Finding the Fourth Proportional to 4,965.03, 7,447.31 and 1,678.26

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Solution

The fourth proportional to 4,965.03, 7,447.31 and 1,678.26 is: 2,517.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,965.03 : 7,447.31 = 1,678.26 : x
  2. Step 2: Convert to fraction form
    4,965.03/7,447.31 = 1,678.26/x
  3. Step 3: Cross multiply
    4,965.03x = 7,447.31 × 1,678.26
  4. Step 4: Simplify right side
    4,965.03x = 12,498,489.44
  5. Step 5: Solve for x
    x = 12,498,489.44/4,965.03
  6. Step 6: Final answer
    x = 2,517.30

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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.