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Finding the Fourth Proportional to 38,511.70, 57,639.55 and 27,951.70

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Solution

The fourth proportional to 38,511.70, 57,639.55 and 27,951.70 is: 41,834.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,511.70 : 57,639.55 = 27,951.70 : x
  2. Step 2: Convert to fraction form
    38,511.70/57,639.55 = 27,951.70/x
  3. Step 3: Cross multiply
    38,511.70x = 57,639.55 × 27,951.70
  4. Step 4: Simplify right side
    38,511.70x = 1,611,123,409.74
  5. Step 5: Solve for x
    x = 1,611,123,409.74/38,511.70
  6. Step 6: Final answer
    x = 41,834.65

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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.