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Finding the Fourth Proportional to 66,928.85, 92,364.36 and 36,715.44

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Solution

The fourth proportional to 66,928.85, 92,364.36 and 36,715.44 is: 50,668.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,928.85 : 92,364.36 = 36,715.44 : x
  2. Step 2: Convert to fraction form
    66,928.85/92,364.36 = 36,715.44/x
  3. Step 3: Cross multiply
    66,928.85x = 92,364.36 × 36,715.44
  4. Step 4: Simplify right side
    66,928.85x = 3,391,198,117.72
  5. Step 5: Solve for x
    x = 3,391,198,117.72/66,928.85
  6. Step 6: Final answer
    x = 50,668.71

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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.