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Finding the Fourth Proportional to 58,782.41, 81,119.70 and 31,924.92

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Solution

The fourth proportional to 58,782.41, 81,119.70 and 31,924.92 is: 44,056.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,782.41 : 81,119.70 = 31,924.92 : x
  2. Step 2: Convert to fraction form
    58,782.41/81,119.70 = 31,924.92/x
  3. Step 3: Cross multiply
    58,782.41x = 81,119.70 × 31,924.92
  4. Step 4: Simplify right side
    58,782.41x = 2,589,739,932.92
  5. Step 5: Solve for x
    x = 2,589,739,932.92/58,782.41
  6. Step 6: Final answer
    x = 44,056.38

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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.