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Finding the Fourth Proportional to 66,888.94, 100,338.88 and 33,591.86

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Solution

The fourth proportional to 66,888.94, 100,338.88 and 33,591.86 is: 50,390.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,888.94 : 100,338.88 = 33,591.86 : x
  2. Step 2: Convert to fraction form
    66,888.94/100,338.88 = 33,591.86/x
  3. Step 3: Cross multiply
    66,888.94x = 100,338.88 × 33,591.86
  4. Step 4: Simplify right side
    66,888.94x = 3,370,569,609.52
  5. Step 5: Solve for x
    x = 3,370,569,609.52/66,888.94
  6. Step 6: Final answer
    x = 50,390.54

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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.