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Finding the Fourth Proportional to 30,274.92, 41,778.72 and 16,845.64

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Solution

The fourth proportional to 30,274.92, 41,778.72 and 16,845.64 is: 23,246.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,274.92 : 41,778.72 = 16,845.64 : x
  2. Step 2: Convert to fraction form
    30,274.92/41,778.72 = 16,845.64/x
  3. Step 3: Cross multiply
    30,274.92x = 41,778.72 × 16,845.64
  4. Step 4: Simplify right side
    30,274.92x = 703,789,276.78
  5. Step 5: Solve for x
    x = 703,789,276.78/30,274.92
  6. Step 6: Final answer
    x = 23,246.61

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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.