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Finding the Fourth Proportional to 55,493.76, 76,579.68 and 33,991.68

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Solution

The fourth proportional to 55,493.76, 76,579.68 and 33,991.68 is: 46,907.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,493.76 : 76,579.68 = 33,991.68 : x
  2. Step 2: Convert to fraction form
    55,493.76/76,579.68 = 33,991.68/x
  3. Step 3: Cross multiply
    55,493.76x = 76,579.68 × 33,991.68
  4. Step 4: Simplify right side
    55,493.76x = 2,603,071,977.06
  5. Step 5: Solve for x
    x = 2,603,071,977.06/55,493.76
  6. Step 6: Final answer
    x = 46,907.47

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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.