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Finding the Fourth Proportional to 55,487.31, 83,238.84 and 18,035.23

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Solution

The fourth proportional to 55,487.31, 83,238.84 and 18,035.23 is: 27,055.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,487.31 : 83,238.84 = 18,035.23 : x
  2. Step 2: Convert to fraction form
    55,487.31/83,238.84 = 18,035.23/x
  3. Step 3: Cross multiply
    55,487.31x = 83,238.84 × 18,035.23
  4. Step 4: Simplify right side
    55,487.31x = 1,501,231,624.33
  5. Step 5: Solve for x
    x = 1,501,231,624.33/55,487.31
  6. Step 6: Final answer
    x = 27,055.40

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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.