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Finding the Fourth Proportional to 3,503.12, 5,253 and 1,860.44

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Solution

The fourth proportional to 3,503.12, 5,253 and 1,860.44 is: 2,789.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,503.12 : 5,253 = 1,860.44 : x
  2. Step 2: Convert to fraction form
    3,503.12/5,253 = 1,860.44/x
  3. Step 3: Cross multiply
    3,503.12x = 5,253 × 1,860.44
  4. Step 4: Simplify right side
    3,503.12x = 9,772,891.32
  5. Step 5: Solve for x
    x = 9,772,891.32/3,503.12
  6. Step 6: Final answer
    x = 2,789.77

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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.