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Finding the Fourth Proportional to 38,399.44, 57,602.28 and 11,751.28

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Solution

The fourth proportional to 38,399.44, 57,602.28 and 11,751.28 is: 17,627.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,399.44 : 57,602.28 = 11,751.28 : x
  2. Step 2: Convert to fraction form
    38,399.44/57,602.28 = 11,751.28/x
  3. Step 3: Cross multiply
    38,399.44x = 57,602.28 × 11,751.28
  4. Step 4: Simplify right side
    38,399.44x = 676,900,520.92
  5. Step 5: Solve for x
    x = 676,900,520.92/38,399.44
  6. Step 6: Final answer
    x = 17,627.87

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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.