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Finding the Fourth Proportional to 5,918.76, 8,880.30 and 3,453.12

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Solution

The fourth proportional to 5,918.76, 8,880.30 and 3,453.12 is: 5,180.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,918.76 : 8,880.30 = 3,453.12 : x
  2. Step 2: Convert to fraction form
    5,918.76/8,880.30 = 3,453.12/x
  3. Step 3: Cross multiply
    5,918.76x = 8,880.30 × 3,453.12
  4. Step 4: Simplify right side
    5,918.76x = 30,664,741.54
  5. Step 5: Solve for x
    x = 30,664,741.54/5,918.76
  6. Step 6: Final answer
    x = 5,180.94

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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.