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Finding the Fourth Proportional to 7,104.75, 9,804.56 and 3,961.05

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Solution

The fourth proportional to 7,104.75, 9,804.56 and 3,961.05 is: 5,466.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,104.75 : 9,804.56 = 3,961.05 : x
  2. Step 2: Convert to fraction form
    7,104.75/9,804.56 = 3,961.05/x
  3. Step 3: Cross multiply
    7,104.75x = 9,804.56 × 3,961.05
  4. Step 4: Simplify right side
    7,104.75x = 38,836,352.39
  5. Step 5: Solve for x
    x = 38,836,352.39/7,104.75
  6. Step 6: Final answer
    x = 5,466.25

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1.5x scale

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.