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Finding the Fourth Proportional to 49,447.80, 74,171.70 and 36,228.60

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Solution

The fourth proportional to 49,447.80, 74,171.70 and 36,228.60 is: 54,342.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,447.80 : 74,171.70 = 36,228.60 : x
  2. Step 2: Convert to fraction form
    49,447.80/74,171.70 = 36,228.60/x
  3. Step 3: Cross multiply
    49,447.80x = 74,171.70 × 36,228.60
  4. Step 4: Simplify right side
    49,447.80x = 2,687,136,850.62
  5. Step 5: Solve for x
    x = 2,687,136,850.62/49,447.80
  6. Step 6: Final answer
    x = 54,342.90

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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.