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Finding the Fourth Proportional to 57,396.53, 86,094.81 and 17,953.80

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Solution

The fourth proportional to 57,396.53, 86,094.81 and 17,953.80 is: 26,930.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,396.53 : 86,094.81 = 17,953.80 : x
  2. Step 2: Convert to fraction form
    57,396.53/86,094.81 = 17,953.80/x
  3. Step 3: Cross multiply
    57,396.53x = 86,094.81 × 17,953.80
  4. Step 4: Simplify right side
    57,396.53x = 1,545,728,999.78
  5. Step 5: Solve for x
    x = 1,545,728,999.78/57,396.53
  6. Step 6: Final answer
    x = 26,930.71

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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.