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Finding the Fourth Proportional to 63,498.12, 87,631.38 and 36,645.54

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Solution

The fourth proportional to 63,498.12, 87,631.38 and 36,645.54 is: 50,573.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,498.12 : 87,631.38 = 36,645.54 : x
  2. Step 2: Convert to fraction form
    63,498.12/87,631.38 = 36,645.54/x
  3. Step 3: Cross multiply
    63,498.12x = 87,631.38 × 36,645.54
  4. Step 4: Simplify right side
    63,498.12x = 3,211,299,241.05
  5. Step 5: Solve for x
    x = 3,211,299,241.05/63,498.12
  6. Step 6: Final answer
    x = 50,573.14

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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.