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Finding the Fourth Proportional to 3,608.90, 4,975.34 and 2,281.94

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Solution

The fourth proportional to 3,608.90, 4,975.34 and 2,281.94 is: 3,145.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,608.90 : 4,975.34 = 2,281.94 : x
  2. Step 2: Convert to fraction form
    3,608.90/4,975.34 = 2,281.94/x
  3. Step 3: Cross multiply
    3,608.90x = 4,975.34 × 2,281.94
  4. Step 4: Simplify right side
    3,608.90x = 11,353,427.36
  5. Step 5: Solve for x
    x = 11,353,427.36/3,608.90
  6. Step 6: Final answer
    x = 3,145.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.