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Finding the Fourth Proportional to 11,995.02, 17,992.53 and 4,203.86

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Solution

The fourth proportional to 11,995.02, 17,992.53 and 4,203.86 is: 6,305.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,995.02 : 17,992.53 = 4,203.86 : x
  2. Step 2: Convert to fraction form
    11,995.02/17,992.53 = 4,203.86/x
  3. Step 3: Cross multiply
    11,995.02x = 17,992.53 × 4,203.86
  4. Step 4: Simplify right side
    11,995.02x = 75,637,987.20
  5. Step 5: Solve for x
    x = 75,637,987.20/11,995.02
  6. Step 6: Final answer
    x = 6,305.78

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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.