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Finding the Fourth Proportional to 58,762.25, 81,092.64 and 31,905.21

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Solution

The fourth proportional to 58,762.25, 81,092.64 and 31,905.21 is: 44,029.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,762.25 : 81,092.64 = 31,905.21 : x
  2. Step 2: Convert to fraction form
    58,762.25/81,092.64 = 31,905.21/x
  3. Step 3: Cross multiply
    58,762.25x = 81,092.64 × 31,905.21
  4. Step 4: Simplify right side
    58,762.25x = 2,587,277,708.65
  5. Step 5: Solve for x
    x = 2,587,277,708.65/58,762.25
  6. Step 6: Final answer
    x = 44,029.59

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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.