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Finding the Fourth Proportional to 60,471.96, 90,645.30 and 43,790.28

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Solution

The fourth proportional to 60,471.96, 90,645.30 and 43,790.28 is: 65,640.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,471.96 : 90,645.30 = 43,790.28 : x
  2. Step 2: Convert to fraction form
    60,471.96/90,645.30 = 43,790.28/x
  3. Step 3: Cross multiply
    60,471.96x = 90,645.30 × 43,790.28
  4. Step 4: Simplify right side
    60,471.96x = 3,969,383,067.68
  5. Step 5: Solve for x
    x = 3,969,383,067.68/60,471.96
  6. Step 6: Final answer
    x = 65,640.06

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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.