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Finding the Fourth Proportional to 62,824.82, 86,663.12 and 38,608.92

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Solution

The fourth proportional to 62,824.82, 86,663.12 and 38,608.92 is: 53,258.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,824.82 : 86,663.12 = 38,608.92 : x
  2. Step 2: Convert to fraction form
    62,824.82/86,663.12 = 38,608.92/x
  3. Step 3: Cross multiply
    62,824.82x = 86,663.12 × 38,608.92
  4. Step 4: Simplify right side
    62,824.82x = 3,345,969,273.99
  5. Step 5: Solve for x
    x = 3,345,969,273.99/62,824.82
  6. Step 6: Final answer
    x = 53,258.72

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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.