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Finding the Fourth Proportional to 45,226.25, 68,249.79 and 43,718.79

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Solution

The fourth proportional to 45,226.25, 68,249.79 and 43,718.79 is: 65,974.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,226.25 : 68,249.79 = 43,718.79 : x
  2. Step 2: Convert to fraction form
    45,226.25/68,249.79 = 43,718.79/x
  3. Step 3: Cross multiply
    45,226.25x = 68,249.79 × 43,718.79
  4. Step 4: Simplify right side
    45,226.25x = 2,983,798,108.59
  5. Step 5: Solve for x
    x = 2,983,798,108.59/45,226.25
  6. Step 6: Final answer
    x = 65,974.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.