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Finding the Fourth Proportional to 54,592.65, 81,840.26 and 21,304.98

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Solution

The fourth proportional to 54,592.65, 81,840.26 and 21,304.98 is: 31,938.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,592.65 : 81,840.26 = 21,304.98 : x
  2. Step 2: Convert to fraction form
    54,592.65/81,840.26 = 21,304.98/x
  3. Step 3: Cross multiply
    54,592.65x = 81,840.26 × 21,304.98
  4. Step 4: Simplify right side
    54,592.65x = 1,743,604,995.97
  5. Step 5: Solve for x
    x = 1,743,604,995.97/54,592.65
  6. Step 6: Final answer
    x = 31,938.46

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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.