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Finding the Fourth Proportional to 4,918.60, 7,376.60 and 2,451.60

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Solution

The fourth proportional to 4,918.60, 7,376.60 and 2,451.60 is: 3,676.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,918.60 : 7,376.60 = 2,451.60 : x
  2. Step 2: Convert to fraction form
    4,918.60/7,376.60 = 2,451.60/x
  3. Step 3: Cross multiply
    4,918.60x = 7,376.60 × 2,451.60
  4. Step 4: Simplify right side
    4,918.60x = 18,084,472.56
  5. Step 5: Solve for x
    x = 18,084,472.56/4,918.60
  6. Step 6: Final answer
    x = 3,676.75

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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.