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Finding the Fourth Proportional to 18,536.54, 27,785.37 and 8,667.50

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Solution

The fourth proportional to 18,536.54, 27,785.37 and 8,667.50 is: 12,992.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,536.54 : 27,785.37 = 8,667.50 : x
  2. Step 2: Convert to fraction form
    18,536.54/27,785.37 = 8,667.50/x
  3. Step 3: Cross multiply
    18,536.54x = 27,785.37 × 8,667.50
  4. Step 4: Simplify right side
    18,536.54x = 240,829,694.48
  5. Step 5: Solve for x
    x = 240,829,694.48/18,536.54
  6. Step 6: Final answer
    x = 12,992.16

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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.