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Finding the Fourth Proportional to 33,145.98, 45,652.74 and 28,669.92

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Solution

The fourth proportional to 33,145.98, 45,652.74 and 28,669.92 is: 39,487.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,145.98 : 45,652.74 = 28,669.92 : x
  2. Step 2: Convert to fraction form
    33,145.98/45,652.74 = 28,669.92/x
  3. Step 3: Cross multiply
    33,145.98x = 45,652.74 × 28,669.92
  4. Step 4: Simplify right side
    33,145.98x = 1,308,860,403.58
  5. Step 5: Solve for x
    x = 1,308,860,403.58/33,145.98
  6. Step 6: Final answer
    x = 39,487.76

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.