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Finding the Fourth Proportional to 5,918.36, 8,874.64 and 3,453.80

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Solution

The fourth proportional to 5,918.36, 8,874.64 and 3,453.80 is: 5,179.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,918.36 : 8,874.64 = 3,453.80 : x
  2. Step 2: Convert to fraction form
    5,918.36/8,874.64 = 3,453.80/x
  3. Step 3: Cross multiply
    5,918.36x = 8,874.64 × 3,453.80
  4. Step 4: Simplify right side
    5,918.36x = 30,651,231.63
  5. Step 5: Solve for x
    x = 30,651,231.63/5,918.36
  6. Step 6: Final answer
    x = 5,179.01

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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.