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Finding the Fourth Proportional to 54,079.80, 74,625.91 and 29,879.74

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Solution

The fourth proportional to 54,079.80, 74,625.91 and 29,879.74 is: 41,231.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,079.80 : 74,625.91 = 29,879.74 : x
  2. Step 2: Convert to fraction form
    54,079.80/74,625.91 = 29,879.74/x
  3. Step 3: Cross multiply
    54,079.80x = 74,625.91 × 29,879.74
  4. Step 4: Simplify right side
    54,079.80x = 2,229,802,386.88
  5. Step 5: Solve for x
    x = 2,229,802,386.88/54,079.80
  6. Step 6: Final answer
    x = 41,231.70

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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.