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Finding the Fourth Proportional to 3,326.65, 4,999.11 and 3,109.95

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Solution

The fourth proportional to 3,326.65, 4,999.11 and 3,109.95 is: 4,673.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,326.65 : 4,999.11 = 3,109.95 : x
  2. Step 2: Convert to fraction form
    3,326.65/4,999.11 = 3,109.95/x
  3. Step 3: Cross multiply
    3,326.65x = 4,999.11 × 3,109.95
  4. Step 4: Simplify right side
    3,326.65x = 15,546,982.14
  5. Step 5: Solve for x
    x = 15,546,982.14/3,326.65
  6. Step 6: Final answer
    x = 4,673.46

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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.