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Finding the Fourth Proportional to 62,147.28, 85,765.32 and 33,855.60

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Solution

The fourth proportional to 62,147.28, 85,765.32 and 33,855.60 is: 46,721.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,147.28 : 85,765.32 = 33,855.60 : x
  2. Step 2: Convert to fraction form
    62,147.28/85,765.32 = 33,855.60/x
  3. Step 3: Cross multiply
    62,147.28x = 85,765.32 × 33,855.60
  4. Step 4: Simplify right side
    62,147.28x = 2,903,636,367.79
  5. Step 5: Solve for x
    x = 2,903,636,367.79/62,147.28
  6. Step 6: Final answer
    x = 46,721.86

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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.