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Finding the Fourth Proportional to 57,513.38, 86,270.09 and 15,960.38

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Solution

The fourth proportional to 57,513.38, 86,270.09 and 15,960.38 is: 23,940.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,513.38 : 86,270.09 = 15,960.38 : x
  2. Step 2: Convert to fraction form
    57,513.38/86,270.09 = 15,960.38/x
  3. Step 3: Cross multiply
    57,513.38x = 86,270.09 × 15,960.38
  4. Step 4: Simplify right side
    57,513.38x = 1,376,902,907.88
  5. Step 5: Solve for x
    x = 1,376,902,907.88/57,513.38
  6. Step 6: Final answer
    x = 23,940.57

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Double scale
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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.