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Finding the Fourth Proportional to 40,563.92, 60,844.96 and 18,361.20

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Solution

The fourth proportional to 40,563.92, 60,844.96 and 18,361.20 is: 27,541.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,563.92 : 60,844.96 = 18,361.20 : x
  2. Step 2: Convert to fraction form
    40,563.92/60,844.96 = 18,361.20/x
  3. Step 3: Cross multiply
    40,563.92x = 60,844.96 × 18,361.20
  4. Step 4: Simplify right side
    40,563.92x = 1,117,186,479.55
  5. Step 5: Solve for x
    x = 1,117,186,479.55/40,563.92
  6. Step 6: Final answer
    x = 27,541.38

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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.