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Finding the Fourth Proportional to 54,063.81, 81,099.81 and 14,620.34

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Solution

The fourth proportional to 54,063.81, 81,099.81 and 14,620.34 is: 21,931.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,063.81 : 81,099.81 = 14,620.34 : x
  2. Step 2: Convert to fraction form
    54,063.81/81,099.81 = 14,620.34/x
  3. Step 3: Cross multiply
    54,063.81x = 81,099.81 × 14,620.34
  4. Step 4: Simplify right side
    54,063.81x = 1,185,706,998.88
  5. Step 5: Solve for x
    x = 1,185,706,998.88/54,063.81
  6. Step 6: Final answer
    x = 21,931.62

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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.