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Finding the Fourth Proportional to 3,320.03, 4,978.94 and 1,675.53

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Solution

The fourth proportional to 3,320.03, 4,978.94 and 1,675.53 is: 2,512.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,320.03 : 4,978.94 = 1,675.53 : x
  2. Step 2: Convert to fraction form
    3,320.03/4,978.94 = 1,675.53/x
  3. Step 3: Cross multiply
    3,320.03x = 4,978.94 × 1,675.53
  4. Step 4: Simplify right side
    3,320.03x = 8,342,354.96
  5. Step 5: Solve for x
    x = 8,342,354.96/3,320.03
  6. Step 6: Final answer
    x = 2,512.73

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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.