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Finding the Fourth Proportional to 62,472.67, 86,213.54 and 34,178.97

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Solution

The fourth proportional to 62,472.67, 86,213.54 and 34,178.97 is: 47,167.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,472.67 : 86,213.54 = 34,178.97 : x
  2. Step 2: Convert to fraction form
    62,472.67/86,213.54 = 34,178.97/x
  3. Step 3: Cross multiply
    62,472.67x = 86,213.54 × 34,178.97
  4. Step 4: Simplify right side
    62,472.67x = 2,946,689,997.25
  5. Step 5: Solve for x
    x = 2,946,689,997.25/62,472.67
  6. Step 6: Final answer
    x = 47,167.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.