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Finding the Fourth Proportional to 55,728.71, 76,900.54 and 33,063.80

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Solution

The fourth proportional to 55,728.71, 76,900.54 and 33,063.80 is: 45,625.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,728.71 : 76,900.54 = 33,063.80 : x
  2. Step 2: Convert to fraction form
    55,728.71/76,900.54 = 33,063.80/x
  3. Step 3: Cross multiply
    55,728.71x = 76,900.54 × 33,063.80
  4. Step 4: Simplify right side
    55,728.71x = 2,542,623,669.28
  5. Step 5: Solve for x
    x = 2,542,623,669.28/55,728.71
  6. Step 6: Final answer
    x = 45,625.02

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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.