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Finding the Fourth Proportional to 18,642.54, 27,944.37 and 7,556.88

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Solution

The fourth proportional to 18,642.54, 27,944.37 and 7,556.88 is: 11,327.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,642.54 : 27,944.37 = 7,556.88 : x
  2. Step 2: Convert to fraction form
    18,642.54/27,944.37 = 7,556.88/x
  3. Step 3: Cross multiply
    18,642.54x = 27,944.37 × 7,556.88
  4. Step 4: Simplify right side
    18,642.54x = 211,172,250.77
  5. Step 5: Solve for x
    x = 211,172,250.77/18,642.54
  6. Step 6: Final answer
    x = 11,327.44

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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.