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Finding the Fourth Proportional to 39,394, 59,057.86 and 18,323.34

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Solution

The fourth proportional to 39,394, 59,057.86 and 18,323.34 is: 27,469.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,394 : 59,057.86 = 18,323.34 : x
  2. Step 2: Convert to fraction form
    39,394/59,057.86 = 18,323.34/x
  3. Step 3: Cross multiply
    39,394x = 59,057.86 × 18,323.34
  4. Step 4: Simplify right side
    39,394x = 1,082,136,861.55
  5. Step 5: Solve for x
    x = 1,082,136,861.55/39,394
  6. Step 6: Final answer
    x = 27,469.59

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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.