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Finding the Fourth Proportional to 18,365.92, 27,562.71 and 8,512.09

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Solution

The fourth proportional to 18,365.92, 27,562.71 and 8,512.09 is: 12,774.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,365.92 : 27,562.71 = 8,512.09 : x
  2. Step 2: Convert to fraction form
    18,365.92/27,562.71 = 8,512.09/x
  3. Step 3: Cross multiply
    18,365.92x = 27,562.71 × 8,512.09
  4. Step 4: Simplify right side
    18,365.92x = 234,616,268.16
  5. Step 5: Solve for x
    x = 234,616,268.16/18,365.92
  6. Step 6: Final answer
    x = 12,774.54

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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.