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Finding the Fourth Proportional to 12,993.24, 17,930.81 and 7,025.03

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Solution

The fourth proportional to 12,993.24, 17,930.81 and 7,025.03 is: 9,694.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,993.24 : 17,930.81 = 7,025.03 : x
  2. Step 2: Convert to fraction form
    12,993.24/17,930.81 = 7,025.03/x
  3. Step 3: Cross multiply
    12,993.24x = 17,930.81 × 7,025.03
  4. Step 4: Simplify right side
    12,993.24x = 125,964,353.40
  5. Step 5: Solve for x
    x = 125,964,353.40/12,993.24
  6. Step 6: Final answer
    x = 9,694.61

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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.