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Finding the Fourth Proportional to 57,956.72, 86,964.24 and 43,195.28

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Solution

The fourth proportional to 57,956.72, 86,964.24 and 43,195.28 is: 64,814.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,956.72 : 86,964.24 = 43,195.28 : x
  2. Step 2: Convert to fraction form
    57,956.72/86,964.24 = 43,195.28/x
  3. Step 3: Cross multiply
    57,956.72x = 86,964.24 × 43,195.28
  4. Step 4: Simplify right side
    57,956.72x = 3,756,444,696.79
  5. Step 5: Solve for x
    x = 3,756,444,696.79/57,956.72
  6. Step 6: Final answer
    x = 64,814.65

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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.