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Finding the Fourth Proportional to 58,249.72, 87,364.86 and 16,687

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Solution

The fourth proportional to 58,249.72, 87,364.86 and 16,687 is: 25,027.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,249.72 : 87,364.86 = 16,687 : x
  2. Step 2: Convert to fraction form
    58,249.72/87,364.86 = 16,687/x
  3. Step 3: Cross multiply
    58,249.72x = 87,364.86 × 16,687
  4. Step 4: Simplify right side
    58,249.72x = 1,457,857,418.82
  5. Step 5: Solve for x
    x = 1,457,857,418.82/58,249.72
  6. Step 6: Final answer
    x = 25,027.72

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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.