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Finding the Fourth Proportional to 3,651.58, 5,480.21 and 1,461.75

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Solution

The fourth proportional to 3,651.58, 5,480.21 and 1,461.75 is: 2,193.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,651.58 : 5,480.21 = 1,461.75 : x
  2. Step 2: Convert to fraction form
    3,651.58/5,480.21 = 1,461.75/x
  3. Step 3: Cross multiply
    3,651.58x = 5,480.21 × 1,461.75
  4. Step 4: Simplify right side
    3,651.58x = 8,010,671.85
  5. Step 5: Solve for x
    x = 8,010,671.85/3,651.58
  6. Step 6: Final answer
    x = 2,193.75

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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.