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Finding the Fourth Proportional to 11,992.42, 17,990.48 and 4,093.08

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Solution

The fourth proportional to 11,992.42, 17,990.48 and 4,093.08 is: 6,140.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,992.42 : 17,990.48 = 4,093.08 : x
  2. Step 2: Convert to fraction form
    11,992.42/17,990.48 = 4,093.08/x
  3. Step 3: Cross multiply
    11,992.42x = 17,990.48 × 4,093.08
  4. Step 4: Simplify right side
    11,992.42x = 73,636,473.88
  5. Step 5: Solve for x
    x = 73,636,473.88/11,992.42
  6. Step 6: Final answer
    x = 6,140.25

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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.