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Finding the Fourth Proportional to 58,621.68, 80,898 and 31,764.48

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Solution

The fourth proportional to 58,621.68, 80,898 and 31,764.48 is: 43,835.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,621.68 : 80,898 = 31,764.48 : x
  2. Step 2: Convert to fraction form
    58,621.68/80,898 = 31,764.48/x
  3. Step 3: Cross multiply
    58,621.68x = 80,898 × 31,764.48
  4. Step 4: Simplify right side
    58,621.68x = 2,569,682,903.04
  5. Step 5: Solve for x
    x = 2,569,682,903.04/58,621.68
  6. Step 6: Final answer
    x = 43,835.03

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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.