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Finding the Fourth Proportional to 18,575.37, 27,862.77 and 7,481.77

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Solution

The fourth proportional to 18,575.37, 27,862.77 and 7,481.77 is: 11,222.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,575.37 : 27,862.77 = 7,481.77 : x
  2. Step 2: Convert to fraction form
    18,575.37/27,862.77 = 7,481.77/x
  3. Step 3: Cross multiply
    18,575.37x = 27,862.77 × 7,481.77
  4. Step 4: Simplify right side
    18,575.37x = 208,462,836.70
  5. Step 5: Solve for x
    x = 208,462,836.70/18,575.37
  6. Step 6: Final answer
    x = 11,222.54

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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.