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Finding the Fourth Proportional to 54,624.96, 81,936.96 and 17,688.96

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Solution

The fourth proportional to 54,624.96, 81,936.96 and 17,688.96 is: 26,533.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,624.96 : 81,936.96 = 17,688.96 : x
  2. Step 2: Convert to fraction form
    54,624.96/81,936.96 = 17,688.96/x
  3. Step 3: Cross multiply
    54,624.96x = 81,936.96 × 17,688.96
  4. Step 4: Simplify right side
    54,624.96x = 1,449,379,607.96
  5. Step 5: Solve for x
    x = 1,449,379,607.96/54,624.96
  6. Step 6: Final answer
    x = 26,533.28

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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.