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Finding the Fourth Proportional to 38,820.78, 58,230.70 and 27,375.56

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Solution

The fourth proportional to 38,820.78, 58,230.70 and 27,375.56 is: 41,063.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,820.78 : 58,230.70 = 27,375.56 : x
  2. Step 2: Convert to fraction form
    38,820.78/58,230.70 = 27,375.56/x
  3. Step 3: Cross multiply
    38,820.78x = 58,230.70 × 27,375.56
  4. Step 4: Simplify right side
    38,820.78x = 1,594,098,021.69
  5. Step 5: Solve for x
    x = 1,594,098,021.69/38,820.78
  6. Step 6: Final answer
    x = 41,063.01

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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.