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Finding the Fourth Proportional to 18,529.61, 27,774.50 and 8,004.60

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Solution

The fourth proportional to 18,529.61, 27,774.50 and 8,004.60 is: 11,998.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,529.61 : 27,774.50 = 8,004.60 : x
  2. Step 2: Convert to fraction form
    18,529.61/27,774.50 = 8,004.60/x
  3. Step 3: Cross multiply
    18,529.61x = 27,774.50 × 8,004.60
  4. Step 4: Simplify right side
    18,529.61x = 222,323,722.68
  5. Step 5: Solve for x
    x = 222,323,722.68/18,529.61
  6. Step 6: Final answer
    x = 11,998.30

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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.