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Finding the Fourth Proportional to 25,840.92, 38,760.36 and 7,372.92

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Solution

The fourth proportional to 25,840.92, 38,760.36 and 7,372.92 is: 11,059.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,840.92 : 38,760.36 = 7,372.92 : x
  2. Step 2: Convert to fraction form
    25,840.92/38,760.36 = 7,372.92/x
  3. Step 3: Cross multiply
    25,840.92x = 38,760.36 × 7,372.92
  4. Step 4: Simplify right side
    25,840.92x = 285,777,033.45
  5. Step 5: Solve for x
    x = 285,777,033.45/25,840.92
  6. Step 6: Final answer
    x = 11,059.09

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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.