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Finding the Fourth Proportional to 38,391.84, 57,543.84 and 16,171.92

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Solution

The fourth proportional to 38,391.84, 57,543.84 and 16,171.92 is: 24,239.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,391.84 : 57,543.84 = 16,171.92 : x
  2. Step 2: Convert to fraction form
    38,391.84/57,543.84 = 16,171.92/x
  3. Step 3: Cross multiply
    38,391.84x = 57,543.84 × 16,171.92
  4. Step 4: Simplify right side
    38,391.84x = 930,594,376.97
  5. Step 5: Solve for x
    x = 930,594,376.97/38,391.84
  6. Step 6: Final answer
    x = 24,239.38

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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.