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Finding the Fourth Proportional to 58,625.78, 80,905.08 and 35,977.28

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Solution

The fourth proportional to 58,625.78, 80,905.08 and 35,977.28 is: 49,649.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,625.78 : 80,905.08 = 35,977.28 : x
  2. Step 2: Convert to fraction form
    58,625.78/80,905.08 = 35,977.28/x
  3. Step 3: Cross multiply
    58,625.78x = 80,905.08 × 35,977.28
  4. Step 4: Simplify right side
    58,625.78x = 2,910,744,716.58
  5. Step 5: Solve for x
    x = 2,910,744,716.58/58,625.78
  6. Step 6: Final answer
    x = 49,649.57

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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.