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Finding the Fourth Proportional to 57,836.80, 86,288.48 and 51,525.88

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Solution

The fourth proportional to 57,836.80, 86,288.48 and 51,525.88 is: 76,873.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,836.80 : 86,288.48 = 51,525.88 : x
  2. Step 2: Convert to fraction form
    57,836.80/86,288.48 = 51,525.88/x
  3. Step 3: Cross multiply
    57,836.80x = 86,288.48 × 51,525.88
  4. Step 4: Simplify right side
    57,836.80x = 4,446,089,865.86
  5. Step 5: Solve for x
    x = 4,446,089,865.86/57,836.80
  6. Step 6: Final answer
    x = 76,873.03

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Why These Related Problems?

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