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Finding the Fourth Proportional to 69,928.92, 104,878.80 and 25,576.56

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Solution

The fourth proportional to 69,928.92, 104,878.80 and 25,576.56 is: 38,359.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,928.92 : 104,878.80 = 25,576.56 : x
  2. Step 2: Convert to fraction form
    69,928.92/104,878.80 = 25,576.56/x
  3. Step 3: Cross multiply
    69,928.92x = 104,878.80 × 25,576.56
  4. Step 4: Simplify right side
    69,928.92x = 2,682,438,920.93
  5. Step 5: Solve for x
    x = 2,682,438,920.93/69,928.92
  6. Step 6: Final answer
    x = 38,359.51

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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.