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Finding the Fourth Proportional to 48,391.92, 72,571.43 and 18,398.93

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Solution

The fourth proportional to 48,391.92, 72,571.43 and 18,398.93 is: 27,592.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,391.92 : 72,571.43 = 18,398.93 : x
  2. Step 2: Convert to fraction form
    48,391.92/72,571.43 = 18,398.93/x
  3. Step 3: Cross multiply
    48,391.92x = 72,571.43 × 18,398.93
  4. Step 4: Simplify right side
    48,391.92x = 1,335,236,205.72
  5. Step 5: Solve for x
    x = 1,335,236,205.72/48,391.92
  6. Step 6: Final answer
    x = 27,592.13

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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.