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Finding the Fourth Proportional to 56,304.87, 84,471.89 and 21,244.83

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Solution

The fourth proportional to 56,304.87, 84,471.89 and 21,244.83 is: 31,872.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,304.87 : 84,471.89 = 21,244.83 : x
  2. Step 2: Convert to fraction form
    56,304.87/84,471.89 = 21,244.83/x
  3. Step 3: Cross multiply
    56,304.87x = 84,471.89 × 21,244.83
  4. Step 4: Simplify right side
    56,304.87x = 1,794,590,836.60
  5. Step 5: Solve for x
    x = 1,794,590,836.60/56,304.87
  6. Step 6: Final answer
    x = 31,872.75

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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.