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Finding the Fourth Proportional to 18,087.74, 27,135.74 and 6,994.52

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Solution

The fourth proportional to 18,087.74, 27,135.74 and 6,994.52 is: 10,493.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,087.74 : 27,135.74 = 6,994.52 : x
  2. Step 2: Convert to fraction form
    18,087.74/27,135.74 = 6,994.52/x
  3. Step 3: Cross multiply
    18,087.74x = 27,135.74 × 6,994.52
  4. Step 4: Simplify right side
    18,087.74x = 189,801,476.14
  5. Step 5: Solve for x
    x = 189,801,476.14/18,087.74
  6. Step 6: Final answer
    x = 10,493.38

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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.