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Finding the Fourth Proportional to 58,394.78, 80,584.79 and 31,537.28

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Solution

The fourth proportional to 58,394.78, 80,584.79 and 31,537.28 is: 43,521.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,394.78 : 80,584.79 = 31,537.28 : x
  2. Step 2: Convert to fraction form
    58,394.78/80,584.79 = 31,537.28/x
  3. Step 3: Cross multiply
    58,394.78x = 80,584.79 × 31,537.28
  4. Step 4: Simplify right side
    58,394.78x = 2,541,425,085.97
  5. Step 5: Solve for x
    x = 2,541,425,085.97/58,394.78
  6. Step 6: Final answer
    x = 43,521.44

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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.