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Finding the Fourth Proportional to 39,662.25, 59,493.42 and 11,960.25

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Solution

The fourth proportional to 39,662.25, 59,493.42 and 11,960.25 is: 17,940.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,662.25 : 59,493.42 = 11,960.25 : x
  2. Step 2: Convert to fraction form
    39,662.25/59,493.42 = 11,960.25/x
  3. Step 3: Cross multiply
    39,662.25x = 59,493.42 × 11,960.25
  4. Step 4: Simplify right side
    39,662.25x = 711,556,176.56
  5. Step 5: Solve for x
    x = 711,556,176.56/39,662.25
  6. Step 6: Final answer
    x = 17,940.39

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Similar ratio
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1.5x scale

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.