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Finding the Fourth Proportional to 55,321.74, 82,996.29 and 15,881.94

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Solution

The fourth proportional to 55,321.74, 82,996.29 and 15,881.94 is: 23,826.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,321.74 : 82,996.29 = 15,881.94 : x
  2. Step 2: Convert to fraction form
    55,321.74/82,996.29 = 15,881.94/x
  3. Step 3: Cross multiply
    55,321.74x = 82,996.29 × 15,881.94
  4. Step 4: Simplify right side
    55,321.74x = 1,318,142,098.00
  5. Step 5: Solve for x
    x = 1,318,142,098.00/55,321.74
  6. Step 6: Final answer
    x = 23,826.84

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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.