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Finding the Fourth Proportional to 7,024.80, 9,694.32 and 3,880.92

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Solution

The fourth proportional to 7,024.80, 9,694.32 and 3,880.92 is: 5,355.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,024.80 : 9,694.32 = 3,880.92 : x
  2. Step 2: Convert to fraction form
    7,024.80/9,694.32 = 3,880.92/x
  3. Step 3: Cross multiply
    7,024.80x = 9,694.32 × 3,880.92
  4. Step 4: Simplify right side
    7,024.80x = 37,622,880.37
  5. Step 5: Solve for x
    x = 37,622,880.37/7,024.80
  6. Step 6: Final answer
    x = 5,355.72

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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.