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Finding the Fourth Proportional to 63,689.88, 87,893.82 and 36,829.80

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Solution

The fourth proportional to 63,689.88, 87,893.82 and 36,829.80 is: 50,826.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,689.88 : 87,893.82 = 36,829.80 : x
  2. Step 2: Convert to fraction form
    63,689.88/87,893.82 = 36,829.80/x
  3. Step 3: Cross multiply
    63,689.88x = 87,893.82 × 36,829.80
  4. Step 4: Simplify right side
    63,689.88x = 3,237,111,811.84
  5. Step 5: Solve for x
    x = 3,237,111,811.84/63,689.88
  6. Step 6: Final answer
    x = 50,826.16

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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.