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Finding the Fourth Proportional to 57,995.10, 86,836.74 and 36,820.48

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Solution

The fourth proportional to 57,995.10, 86,836.74 and 36,820.48 is: 55,131.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,995.10 : 86,836.74 = 36,820.48 : x
  2. Step 2: Convert to fraction form
    57,995.10/86,836.74 = 36,820.48/x
  3. Step 3: Cross multiply
    57,995.10x = 86,836.74 × 36,820.48
  4. Step 4: Simplify right side
    57,995.10x = 3,197,370,448.44
  5. Step 5: Solve for x
    x = 3,197,370,448.44/57,995.10
  6. Step 6: Final answer
    x = 55,131.73

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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.