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Finding the Fourth Proportional to 63,506.22, 87,638.49 and 36,648.72

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Solution

The fourth proportional to 63,506.22, 87,638.49 and 36,648.72 is: 50,575.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,506.22 : 87,638.49 = 36,648.72 : x
  2. Step 2: Convert to fraction form
    63,506.22/87,638.49 = 36,648.72/x
  3. Step 3: Cross multiply
    63,506.22x = 87,638.49 × 36,648.72
  4. Step 4: Simplify right side
    63,506.22x = 3,211,838,481.23
  5. Step 5: Solve for x
    x = 3,211,838,481.23/63,506.22
  6. Step 6: Final answer
    x = 50,575.18

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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.