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Finding the Fourth Proportional to 56,932.49, 85,450.83 and 28,871.92

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Solution

The fourth proportional to 56,932.49, 85,450.83 and 28,871.92 is: 43,334.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,932.49 : 85,450.83 = 28,871.92 : x
  2. Step 2: Convert to fraction form
    56,932.49/85,450.83 = 28,871.92/x
  3. Step 3: Cross multiply
    56,932.49x = 85,450.83 × 28,871.92
  4. Step 4: Simplify right side
    56,932.49x = 2,467,129,314.07
  5. Step 5: Solve for x
    x = 2,467,129,314.07/56,932.49
  6. Step 6: Final answer
    x = 43,334.29

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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.