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Finding the Fourth Proportional to 58,571.65, 87,856.69 and 14,198.78

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Solution

The fourth proportional to 58,571.65, 87,856.69 and 14,198.78 is: 21,297.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,571.65 : 87,856.69 = 14,198.78 : x
  2. Step 2: Convert to fraction form
    58,571.65/87,856.69 = 14,198.78/x
  3. Step 3: Cross multiply
    58,571.65x = 87,856.69 × 14,198.78
  4. Step 4: Simplify right side
    58,571.65x = 1,247,457,302.56
  5. Step 5: Solve for x
    x = 1,247,457,302.56/58,571.65
  6. Step 6: Final answer
    x = 21,297.97

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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.