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Finding the Fourth Proportional to 54,411.52, 81,568.02 and 19,342.98

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Solution

The fourth proportional to 54,411.52, 81,568.02 and 19,342.98 is: 28,996.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,411.52 : 81,568.02 = 19,342.98 : x
  2. Step 2: Convert to fraction form
    54,411.52/81,568.02 = 19,342.98/x
  3. Step 3: Cross multiply
    54,411.52x = 81,568.02 × 19,342.98
  4. Step 4: Simplify right side
    54,411.52x = 1,577,768,579.50
  5. Step 5: Solve for x
    x = 1,577,768,579.50/54,411.52
  6. Step 6: Final answer
    x = 28,996.96

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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.