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Finding the Fourth Proportional to 52,778.39, 72,672.39 and 48,546.54

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Solution

The fourth proportional to 52,778.39, 72,672.39 and 48,546.54 is: 66,845.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,778.39 : 72,672.39 = 48,546.54 : x
  2. Step 2: Convert to fraction form
    52,778.39/72,672.39 = 48,546.54/x
  3. Step 3: Cross multiply
    52,778.39x = 72,672.39 × 48,546.54
  4. Step 4: Simplify right side
    52,778.39x = 3,527,993,088.03
  5. Step 5: Solve for x
    x = 3,527,993,088.03/52,778.39
  6. Step 6: Final answer
    x = 66,845.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.