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Finding the Fourth Proportional to 48,755.92, 67,289.86 and 28,059

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Solution

The fourth proportional to 48,755.92, 67,289.86 and 28,059 is: 38,725.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,755.92 : 67,289.86 = 28,059 : x
  2. Step 2: Convert to fraction form
    48,755.92/67,289.86 = 28,059/x
  3. Step 3: Cross multiply
    48,755.92x = 67,289.86 × 28,059
  4. Step 4: Simplify right side
    48,755.92x = 1,888,086,181.74
  5. Step 5: Solve for x
    x = 1,888,086,181.74/48,755.92
  6. Step 6: Final answer
    x = 38,725.27

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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.