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Finding the Fourth Proportional to 59,791.86, 82,491.21 and 39,658.50

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Solution

The fourth proportional to 59,791.86, 82,491.21 and 39,658.50 is: 54,714.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,791.86 : 82,491.21 = 39,658.50 : x
  2. Step 2: Convert to fraction form
    59,791.86/82,491.21 = 39,658.50/x
  3. Step 3: Cross multiply
    59,791.86x = 82,491.21 × 39,658.50
  4. Step 4: Simplify right side
    59,791.86x = 3,271,477,651.79
  5. Step 5: Solve for x
    x = 3,271,477,651.79/59,791.86
  6. Step 6: Final answer
    x = 54,714.43

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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.