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Finding the Fourth Proportional to 54,652.52, 81,924.04 and 21,326.72

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Solution

The fourth proportional to 54,652.52, 81,924.04 and 21,326.72 is: 31,968.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,652.52 : 81,924.04 = 21,326.72 : x
  2. Step 2: Convert to fraction form
    54,652.52/81,924.04 = 21,326.72/x
  3. Step 3: Cross multiply
    54,652.52x = 81,924.04 × 21,326.72
  4. Step 4: Simplify right side
    54,652.52x = 1,747,171,062.35
  5. Step 5: Solve for x
    x = 1,747,171,062.35/54,652.52
  6. Step 6: Final answer
    x = 31,968.72

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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.