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Finding the Fourth Proportional to 56,575.86, 84,874.17 and 18,627.30

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Solution

The fourth proportional to 56,575.86, 84,874.17 and 18,627.30 is: 27,944.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,575.86 : 84,874.17 = 18,627.30 : x
  2. Step 2: Convert to fraction form
    56,575.86/84,874.17 = 18,627.30/x
  3. Step 3: Cross multiply
    56,575.86x = 84,874.17 × 18,627.30
  4. Step 4: Simplify right side
    56,575.86x = 1,580,976,202.47
  5. Step 5: Solve for x
    x = 1,580,976,202.47/56,575.86
  6. Step 6: Final answer
    x = 27,944.36

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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.