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Finding the Fourth Proportional to 73,141.38, 109,712.07 and 25,745.31

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Solution

The fourth proportional to 73,141.38, 109,712.07 and 25,745.31 is: 38,617.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,141.38 : 109,712.07 = 25,745.31 : x
  2. Step 2: Convert to fraction form
    73,141.38/109,712.07 = 25,745.31/x
  3. Step 3: Cross multiply
    73,141.38x = 109,712.07 × 25,745.31
  4. Step 4: Simplify right side
    73,141.38x = 2,824,571,252.89
  5. Step 5: Solve for x
    x = 2,824,571,252.89/73,141.38
  6. Step 6: Final answer
    x = 38,617.97

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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.