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Finding the Fourth Proportional to 58,643.33, 80,905.94 and 38,511.38

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Solution

The fourth proportional to 58,643.33, 80,905.94 and 38,511.38 is: 53,131.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,643.33 : 80,905.94 = 38,511.38 : x
  2. Step 2: Convert to fraction form
    58,643.33/80,905.94 = 38,511.38/x
  3. Step 3: Cross multiply
    58,643.33x = 80,905.94 × 38,511.38
  4. Step 4: Simplify right side
    58,643.33x = 3,115,799,553.72
  5. Step 5: Solve for x
    x = 3,115,799,553.72/58,643.33
  6. Step 6: Final answer
    x = 53,131.36

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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.