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Finding the Fourth Proportional to 69,039.87, 103,485.21 and 33,425.94

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Solution

The fourth proportional to 69,039.87, 103,485.21 and 33,425.94 is: 50,102.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,039.87 : 103,485.21 = 33,425.94 : x
  2. Step 2: Convert to fraction form
    69,039.87/103,485.21 = 33,425.94/x
  3. Step 3: Cross multiply
    69,039.87x = 103,485.21 × 33,425.94
  4. Step 4: Simplify right side
    69,039.87x = 3,459,090,420.35
  5. Step 5: Solve for x
    x = 3,459,090,420.35/69,039.87
  6. Step 6: Final answer
    x = 50,102.79

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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.