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Finding the Fourth Proportional to 4,984.75, 7,476.31 and 3,519.46

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Solution

The fourth proportional to 4,984.75, 7,476.31 and 3,519.46 is: 5,278.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,984.75 : 7,476.31 = 3,519.46 : x
  2. Step 2: Convert to fraction form
    4,984.75/7,476.31 = 3,519.46/x
  3. Step 3: Cross multiply
    4,984.75x = 7,476.31 × 3,519.46
  4. Step 4: Simplify right side
    4,984.75x = 26,312,573.99
  5. Step 5: Solve for x
    x = 26,312,573.99/4,984.75
  6. Step 6: Final answer
    x = 5,278.61

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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.