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Finding the Fourth Proportional to 63,536.88, 87,698.08 and 39,649.44

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Solution

The fourth proportional to 63,536.88, 87,698.08 and 39,649.44 is: 54,726.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,536.88 : 87,698.08 = 39,649.44 : x
  2. Step 2: Convert to fraction form
    63,536.88/87,698.08 = 39,649.44/x
  3. Step 3: Cross multiply
    63,536.88x = 87,698.08 × 39,649.44
  4. Step 4: Simplify right side
    63,536.88x = 3,477,179,761.08
  5. Step 5: Solve for x
    x = 3,477,179,761.08/63,536.88
  6. Step 6: Final answer
    x = 54,726.95

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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.