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Finding the Fourth Proportional to 68,879.28, 95,028.96 and 45,019.73

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Solution

The fourth proportional to 68,879.28, 95,028.96 and 45,019.73 is: 62,111.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,879.28 : 95,028.96 = 45,019.73 : x
  2. Step 2: Convert to fraction form
    68,879.28/95,028.96 = 45,019.73/x
  3. Step 3: Cross multiply
    68,879.28x = 95,028.96 × 45,019.73
  4. Step 4: Simplify right side
    68,879.28x = 4,278,177,646.24
  5. Step 5: Solve for x
    x = 4,278,177,646.24/68,879.28
  6. Step 6: Final answer
    x = 62,111.24

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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.