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Finding the Fourth Proportional to 18,403.92, 27,564.35 and 8,522.44

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Solution

The fourth proportional to 18,403.92, 27,564.35 and 8,522.44 is: 12,764.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,403.92 : 27,564.35 = 8,522.44 : x
  2. Step 2: Convert to fraction form
    18,403.92/27,564.35 = 8,522.44/x
  3. Step 3: Cross multiply
    18,403.92x = 27,564.35 × 8,522.44
  4. Step 4: Simplify right side
    18,403.92x = 234,915,407.49
  5. Step 5: Solve for x
    x = 234,915,407.49/18,403.92
  6. Step 6: Final answer
    x = 12,764.42

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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.