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Finding the Fourth Proportional to 49,969.87, 74,917.74 and 30,243.80

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Solution

The fourth proportional to 49,969.87, 74,917.74 and 30,243.80 is: 45,343.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,969.87 : 74,917.74 = 30,243.80 : x
  2. Step 2: Convert to fraction form
    49,969.87/74,917.74 = 30,243.80/x
  3. Step 3: Cross multiply
    49,969.87x = 74,917.74 × 30,243.80
  4. Step 4: Simplify right side
    49,969.87x = 2,265,797,145.01
  5. Step 5: Solve for x
    x = 2,265,797,145.01/49,969.87
  6. Step 6: Final answer
    x = 45,343.27

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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.