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Finding the Fourth Proportional to 56,845.78, 85,268.92 and 14,722.87

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Solution

The fourth proportional to 56,845.78, 85,268.92 and 14,722.87 is: 22,084.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,845.78 : 85,268.92 = 14,722.87 : x
  2. Step 2: Convert to fraction form
    56,845.78/85,268.92 = 14,722.87/x
  3. Step 3: Cross multiply
    56,845.78x = 85,268.92 × 14,722.87
  4. Step 4: Simplify right side
    56,845.78x = 1,255,403,072.85
  5. Step 5: Solve for x
    x = 1,255,403,072.85/56,845.78
  6. Step 6: Final answer
    x = 22,084.37

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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.