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Finding the Fourth Proportional to 56,876.82, 85,278.77 and 23,619.84

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Solution

The fourth proportional to 56,876.82, 85,278.77 and 23,619.84 is: 35,414.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,876.82 : 85,278.77 = 23,619.84 : x
  2. Step 2: Convert to fraction form
    56,876.82/85,278.77 = 23,619.84/x
  3. Step 3: Cross multiply
    56,876.82x = 85,278.77 × 23,619.84
  4. Step 4: Simplify right side
    56,876.82x = 2,014,270,902.80
  5. Step 5: Solve for x
    x = 2,014,270,902.80/56,876.82
  6. Step 6: Final answer
    x = 35,414.62

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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.