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Finding the Fourth Proportional to 7,969.70, 11,954.86 and 4,069.55

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Solution

The fourth proportional to 7,969.70, 11,954.86 and 4,069.55 is: 6,104.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,969.70 : 11,954.86 = 4,069.55 : x
  2. Step 2: Convert to fraction form
    7,969.70/11,954.86 = 4,069.55/x
  3. Step 3: Cross multiply
    7,969.70x = 11,954.86 × 4,069.55
  4. Step 4: Simplify right side
    7,969.70x = 48,650,920.23
  5. Step 5: Solve for x
    x = 48,650,920.23/7,969.70
  6. Step 6: Final answer
    x = 6,104.48

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Similar ratio
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1.5x scale

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.