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Finding the Fourth Proportional to 55,728.41, 76,868.80 and 33,050.43

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Solution

The fourth proportional to 55,728.41, 76,868.80 and 33,050.43 is: 45,588.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,728.41 : 76,868.80 = 33,050.43 : x
  2. Step 2: Convert to fraction form
    55,728.41/76,868.80 = 33,050.43/x
  3. Step 3: Cross multiply
    55,728.41x = 76,868.80 × 33,050.43
  4. Step 4: Simplify right side
    55,728.41x = 2,540,546,810.96
  5. Step 5: Solve for x
    x = 2,540,546,810.96/55,728.41
  6. Step 6: Final answer
    x = 45,588.01

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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.