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Finding the Fourth Proportional to 62,819.44, 86,682.48 and 38,937.44

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Solution

The fourth proportional to 62,819.44, 86,682.48 and 38,937.44 is: 53,728.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,819.44 : 86,682.48 = 38,937.44 : x
  2. Step 2: Convert to fraction form
    62,819.44/86,682.48 = 38,937.44/x
  3. Step 3: Cross multiply
    62,819.44x = 86,682.48 × 38,937.44
  4. Step 4: Simplify right side
    62,819.44x = 3,375,193,864.05
  5. Step 5: Solve for x
    x = 3,375,193,864.05/62,819.44
  6. Step 6: Final answer
    x = 53,728.49

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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.