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Finding the Fourth Proportional to 69,943.92, 104,915.34 and 20,025.24

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Solution

The fourth proportional to 69,943.92, 104,915.34 and 20,025.24 is: 30,037.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,943.92 : 104,915.34 = 20,025.24 : x
  2. Step 2: Convert to fraction form
    69,943.92/104,915.34 = 20,025.24/x
  3. Step 3: Cross multiply
    69,943.92x = 104,915.34 × 20,025.24
  4. Step 4: Simplify right side
    69,943.92x = 2,100,954,863.18
  5. Step 5: Solve for x
    x = 2,100,954,863.18/69,943.92
  6. Step 6: Final answer
    x = 30,037.71

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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.