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Finding the Fourth Proportional to 58,077.84, 87,108.56 and 18,629.82

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Solution

The fourth proportional to 58,077.84, 87,108.56 and 18,629.82 is: 27,942.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,077.84 : 87,108.56 = 18,629.82 : x
  2. Step 2: Convert to fraction form
    58,077.84/87,108.56 = 18,629.82/x
  3. Step 3: Cross multiply
    58,077.84x = 87,108.56 × 18,629.82
  4. Step 4: Simplify right side
    58,077.84x = 1,622,816,793.26
  5. Step 5: Solve for x
    x = 1,622,816,793.26/58,077.84
  6. Step 6: Final answer
    x = 27,942.10

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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.