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Finding the Fourth Proportional to 34,856.70, 48,100.92 and 18,940.80

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Solution

The fourth proportional to 34,856.70, 48,100.92 and 18,940.80 is: 26,137.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,856.70 : 48,100.92 = 18,940.80 : x
  2. Step 2: Convert to fraction form
    34,856.70/48,100.92 = 18,940.80/x
  3. Step 3: Cross multiply
    34,856.70x = 48,100.92 × 18,940.80
  4. Step 4: Simplify right side
    34,856.70x = 911,069,905.54
  5. Step 5: Solve for x
    x = 911,069,905.54/34,856.70
  6. Step 6: Final answer
    x = 26,137.58

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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.