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Finding the Fourth Proportional to 18,170.88, 27,259.20 and 5,856

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Solution

The fourth proportional to 18,170.88, 27,259.20 and 5,856 is: 8,784.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,170.88 : 27,259.20 = 5,856 : x
  2. Step 2: Convert to fraction form
    18,170.88/27,259.20 = 5,856/x
  3. Step 3: Cross multiply
    18,170.88x = 27,259.20 × 5,856
  4. Step 4: Simplify right side
    18,170.88x = 159,629,875.20
  5. Step 5: Solve for x
    x = 159,629,875.20/18,170.88
  6. Step 6: Final answer
    x = 8,784.93

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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.