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Finding the Fourth Proportional to 68,649.73, 94,726.67 and 38,429.48

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Solution

The fourth proportional to 68,649.73, 94,726.67 and 38,429.48 is: 53,027.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,649.73 : 94,726.67 = 38,429.48 : x
  2. Step 2: Convert to fraction form
    68,649.73/94,726.67 = 38,429.48/x
  3. Step 3: Cross multiply
    68,649.73x = 94,726.67 × 38,429.48
  4. Step 4: Simplify right side
    68,649.73x = 3,640,296,714.90
  5. Step 5: Solve for x
    x = 3,640,296,714.90/68,649.73
  6. Step 6: Final answer
    x = 53,027.11

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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.