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Finding the Fourth Proportional to 24,379.92, 33,659.88 and 19,914.40

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Solution

The fourth proportional to 24,379.92, 33,659.88 and 19,914.40 is: 27,494.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,379.92 : 33,659.88 = 19,914.40 : x
  2. Step 2: Convert to fraction form
    24,379.92/33,659.88 = 19,914.40/x
  3. Step 3: Cross multiply
    24,379.92x = 33,659.88 × 19,914.40
  4. Step 4: Simplify right side
    24,379.92x = 670,316,314.27
  5. Step 5: Solve for x
    x = 670,316,314.27/24,379.92
  6. Step 6: Final answer
    x = 27,494.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.