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Finding the Fourth Proportional to 38,134, 57,189.45 and 11,472.93

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Solution

The fourth proportional to 38,134, 57,189.45 and 11,472.93 is: 17,205.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,134 : 57,189.45 = 11,472.93 : x
  2. Step 2: Convert to fraction form
    38,134/57,189.45 = 11,472.93/x
  3. Step 3: Cross multiply
    38,134x = 57,189.45 × 11,472.93
  4. Step 4: Simplify right side
    38,134x = 656,130,556.59
  5. Step 5: Solve for x
    x = 656,130,556.59/38,134
  6. Step 6: Final answer
    x = 17,205.92

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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.