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Finding the Fourth Proportional to 12,841.92, 19,262.88 and 3,481.95

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Solution

The fourth proportional to 12,841.92, 19,262.88 and 3,481.95 is: 5,222.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,841.92 : 19,262.88 = 3,481.95 : x
  2. Step 2: Convert to fraction form
    12,841.92/19,262.88 = 3,481.95/x
  3. Step 3: Cross multiply
    12,841.92x = 19,262.88 × 3,481.95
  4. Step 4: Simplify right side
    12,841.92x = 67,072,385.02
  5. Step 5: Solve for x
    x = 67,072,385.02/12,841.92
  6. Step 6: Final answer
    x = 5,222.93

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Similar ratio
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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.