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Finding the Fourth Proportional to 63,753.48, 87,990.48 and 36,891.36

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Solution

The fourth proportional to 63,753.48, 87,990.48 and 36,891.36 is: 50,916.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,753.48 : 87,990.48 = 36,891.36 : x
  2. Step 2: Convert to fraction form
    63,753.48/87,990.48 = 36,891.36/x
  3. Step 3: Cross multiply
    63,753.48x = 87,990.48 × 36,891.36
  4. Step 4: Simplify right side
    63,753.48x = 3,246,088,474.25
  5. Step 5: Solve for x
    x = 3,246,088,474.25/63,753.48
  6. Step 6: Final answer
    x = 50,916.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.