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Finding the Fourth Proportional to 45,892.77, 68,845.73 and 20,275.64

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Solution

The fourth proportional to 45,892.77, 68,845.73 and 20,275.64 is: 30,416.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,892.77 : 68,845.73 = 20,275.64 : x
  2. Step 2: Convert to fraction form
    45,892.77/68,845.73 = 20,275.64/x
  3. Step 3: Cross multiply
    45,892.77x = 68,845.73 × 20,275.64
  4. Step 4: Simplify right side
    45,892.77x = 1,395,890,791.41
  5. Step 5: Solve for x
    x = 1,395,890,791.41/45,892.77
  6. Step 6: Final answer
    x = 30,416.36

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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.