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Finding the Fourth Proportional to 9,079.28, 13,622.28 and 4,694

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Solution

The fourth proportional to 9,079.28, 13,622.28 and 4,694 is: 7,042.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,079.28 : 13,622.28 = 4,694 : x
  2. Step 2: Convert to fraction form
    9,079.28/13,622.28 = 4,694/x
  3. Step 3: Cross multiply
    9,079.28x = 13,622.28 × 4,694
  4. Step 4: Simplify right side
    9,079.28x = 63,942,982.32
  5. Step 5: Solve for x
    x = 63,942,982.32/9,079.28
  6. Step 6: Final answer
    x = 7,042.74

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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.