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Finding the Fourth Proportional to 58,481.49, 87,721.43 and 14,107.87

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Solution

The fourth proportional to 58,481.49, 87,721.43 and 14,107.87 is: 21,161.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,481.49 : 87,721.43 = 14,107.87 : x
  2. Step 2: Convert to fraction form
    58,481.49/87,721.43 = 14,107.87/x
  3. Step 3: Cross multiply
    58,481.49x = 87,721.43 × 14,107.87
  4. Step 4: Simplify right side
    58,481.49x = 1,237,562,649.12
  5. Step 5: Solve for x
    x = 1,237,562,649.12/58,481.49
  6. Step 6: Final answer
    x = 21,161.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.