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Finding the Fourth Proportional to 11,994.42, 17,991.86 and 4,098.74

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Solution

The fourth proportional to 11,994.42, 17,991.86 and 4,098.74 is: 6,148.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,994.42 : 17,991.86 = 4,098.74 : x
  2. Step 2: Convert to fraction form
    11,994.42/17,991.86 = 4,098.74/x
  3. Step 3: Cross multiply
    11,994.42x = 17,991.86 × 4,098.74
  4. Step 4: Simplify right side
    11,994.42x = 73,743,980.74
  5. Step 5: Solve for x
    x = 73,743,980.74/11,994.42
  6. Step 6: Final answer
    x = 6,148.19

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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.