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Finding the Fourth Proportional to 55,342.80, 83,003.40 and 17,893.80

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Solution

The fourth proportional to 55,342.80, 83,003.40 and 17,893.80 is: 26,837.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,342.80 : 83,003.40 = 17,893.80 : x
  2. Step 2: Convert to fraction form
    55,342.80/83,003.40 = 17,893.80/x
  3. Step 3: Cross multiply
    55,342.80x = 83,003.40 × 17,893.80
  4. Step 4: Simplify right side
    55,342.80x = 1,485,246,238.92
  5. Step 5: Solve for x
    x = 1,485,246,238.92/55,342.80
  6. Step 6: Final answer
    x = 26,837.21

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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.