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Finding the Fourth Proportional to 58,367.18, 87,578.10 and 28,768.86

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Solution

The fourth proportional to 58,367.18, 87,578.10 and 28,768.86 is: 43,166.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,367.18 : 87,578.10 = 28,768.86 : x
  2. Step 2: Convert to fraction form
    58,367.18/87,578.10 = 28,768.86/x
  3. Step 3: Cross multiply
    58,367.18x = 87,578.10 × 28,768.86
  4. Step 4: Simplify right side
    58,367.18x = 2,519,522,097.97
  5. Step 5: Solve for x
    x = 2,519,522,097.97/58,367.18
  6. Step 6: Final answer
    x = 43,166.76

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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.