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Finding the Fourth Proportional to 68,706.56, 102,890.88 and 33,532.80

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Solution

The fourth proportional to 68,706.56, 102,890.88 and 33,532.80 is: 50,216.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,706.56 : 102,890.88 = 33,532.80 : x
  2. Step 2: Convert to fraction form
    68,706.56/102,890.88 = 33,532.80/x
  3. Step 3: Cross multiply
    68,706.56x = 102,890.88 × 33,532.80
  4. Step 4: Simplify right side
    68,706.56x = 3,450,219,300.86
  5. Step 5: Solve for x
    x = 3,450,219,300.86/68,706.56
  6. Step 6: Final answer
    x = 50,216.74

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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.