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Finding the Fourth Proportional to 35,811.86, 53,454.90 and 33,172.88

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Solution

The fourth proportional to 35,811.86, 53,454.90 and 33,172.88 is: 49,515.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,811.86 : 53,454.90 = 33,172.88 : x
  2. Step 2: Convert to fraction form
    35,811.86/53,454.90 = 33,172.88/x
  3. Step 3: Cross multiply
    35,811.86x = 53,454.90 × 33,172.88
  4. Step 4: Simplify right side
    35,811.86x = 1,773,252,840.24
  5. Step 5: Solve for x
    x = 1,773,252,840.24/35,811.86
  6. Step 6: Final answer
    x = 49,515.81

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.