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Finding the Fourth Proportional to 58,751.43, 81,074.74 and 31,893.36

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Solution

The fourth proportional to 58,751.43, 81,074.74 and 31,893.36 is: 44,011.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,751.43 : 81,074.74 = 31,893.36 : x
  2. Step 2: Convert to fraction form
    58,751.43/81,074.74 = 31,893.36/x
  3. Step 3: Cross multiply
    58,751.43x = 81,074.74 × 31,893.36
  4. Step 4: Simplify right side
    58,751.43x = 2,585,745,869.73
  5. Step 5: Solve for x
    x = 2,585,745,869.73/58,751.43
  6. Step 6: Final answer
    x = 44,011.62

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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.