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Finding the Fourth Proportional to 55,053.30, 82,583.09 and 15,607.31

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Solution

The fourth proportional to 55,053.30, 82,583.09 and 15,607.31 is: 23,411.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,053.30 : 82,583.09 = 15,607.31 : x
  2. Step 2: Convert to fraction form
    55,053.30/82,583.09 = 15,607.31/x
  3. Step 3: Cross multiply
    55,053.30x = 82,583.09 × 15,607.31
  4. Step 4: Simplify right side
    55,053.30x = 1,288,900,092.85
  5. Step 5: Solve for x
    x = 1,288,900,092.85/55,053.30
  6. Step 6: Final answer
    x = 23,411.86

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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.