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Finding the Fourth Proportional to 30,059.76, 41,481.72 and 16,631.76

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Solution

The fourth proportional to 30,059.76, 41,481.72 and 16,631.76 is: 22,951.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,059.76 : 41,481.72 = 16,631.76 : x
  2. Step 2: Convert to fraction form
    30,059.76/41,481.72 = 16,631.76/x
  3. Step 3: Cross multiply
    30,059.76x = 41,481.72 × 16,631.76
  4. Step 4: Simplify right side
    30,059.76x = 689,914,011.43
  5. Step 5: Solve for x
    x = 689,914,011.43/30,059.76
  6. Step 6: Final answer
    x = 22,951.41

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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.