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Finding the Fourth Proportional to 58,493.44, 80,720.70 and 31,635.98

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Solution

The fourth proportional to 58,493.44, 80,720.70 and 31,635.98 is: 43,657.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,493.44 : 80,720.70 = 31,635.98 : x
  2. Step 2: Convert to fraction form
    58,493.44/80,720.70 = 31,635.98/x
  3. Step 3: Cross multiply
    58,493.44x = 80,720.70 × 31,635.98
  4. Step 4: Simplify right side
    58,493.44x = 2,553,678,450.79
  5. Step 5: Solve for x
    x = 2,553,678,450.79/58,493.44
  6. Step 6: Final answer
    x = 43,657.52

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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.