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Finding the Fourth Proportional to 11,995.10, 17,992.08 and 4,203.32

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Solution

The fourth proportional to 11,995.10, 17,992.08 and 4,203.32 is: 6,304.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,995.10 : 17,992.08 = 4,203.32 : x
  2. Step 2: Convert to fraction form
    11,995.10/17,992.08 = 4,203.32/x
  3. Step 3: Cross multiply
    11,995.10x = 17,992.08 × 4,203.32
  4. Step 4: Simplify right side
    11,995.10x = 75,626,469.71
  5. Step 5: Solve for x
    x = 75,626,469.71/11,995.10
  6. Step 6: Final answer
    x = 6,304.78

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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.