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Finding the Fourth Proportional to 57,504.80, 86,259.90 and 18,063.20

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Solution

The fourth proportional to 57,504.80, 86,259.90 and 18,063.20 is: 27,095.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,504.80 : 86,259.90 = 18,063.20 : x
  2. Step 2: Convert to fraction form
    57,504.80/86,259.90 = 18,063.20/x
  3. Step 3: Cross multiply
    57,504.80x = 86,259.90 × 18,063.20
  4. Step 4: Simplify right side
    57,504.80x = 1,558,129,825.68
  5. Step 5: Solve for x
    x = 1,558,129,825.68/57,504.80
  6. Step 6: Final answer
    x = 27,095.65

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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.