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Finding the Fourth Proportional to 66,940.86, 92,377.98 and 36,725.40

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Solution

The fourth proportional to 66,940.86, 92,377.98 and 36,725.40 is: 50,680.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,940.86 : 92,377.98 = 36,725.40 : x
  2. Step 2: Convert to fraction form
    66,940.86/92,377.98 = 36,725.40/x
  3. Step 3: Cross multiply
    66,940.86x = 92,377.98 × 36,725.40
  4. Step 4: Simplify right side
    66,940.86x = 3,392,618,266.69
  5. Step 5: Solve for x
    x = 3,392,618,266.69/66,940.86
  6. Step 6: Final answer
    x = 50,680.83

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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.