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Finding the Fourth Proportional to 57,908.88, 86,694.30 and 35,655.48

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Solution

The fourth proportional to 57,908.88, 86,694.30 and 35,655.48 is: 53,379.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,908.88 : 86,694.30 = 35,655.48 : x
  2. Step 2: Convert to fraction form
    57,908.88/86,694.30 = 35,655.48/x
  3. Step 3: Cross multiply
    57,908.88x = 86,694.30 × 35,655.48
  4. Step 4: Simplify right side
    57,908.88x = 3,091,126,879.76
  5. Step 5: Solve for x
    x = 3,091,126,879.76/57,908.88
  6. Step 6: Final answer
    x = 53,379.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.