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Finding the Fourth Proportional to 19,992.16, 27,589.17 and 11,039.68

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Solution

The fourth proportional to 19,992.16, 27,589.17 and 11,039.68 is: 15,234.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,992.16 : 27,589.17 = 11,039.68 : x
  2. Step 2: Convert to fraction form
    19,992.16/27,589.17 = 11,039.68/x
  3. Step 3: Cross multiply
    19,992.16x = 27,589.17 × 11,039.68
  4. Step 4: Simplify right side
    19,992.16x = 304,575,470.32
  5. Step 5: Solve for x
    x = 304,575,470.32/19,992.16
  6. Step 6: Final answer
    x = 15,234.75

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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.