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Finding the Fourth Proportional to 54,739.90, 75,540.90 and 29,589.40

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Solution

The fourth proportional to 54,739.90, 75,540.90 and 29,589.40 is: 40,833.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,739.90 : 75,540.90 = 29,589.40 : x
  2. Step 2: Convert to fraction form
    54,739.90/75,540.90 = 29,589.40/x
  3. Step 3: Cross multiply
    54,739.90x = 75,540.90 × 29,589.40
  4. Step 4: Simplify right side
    54,739.90x = 2,235,209,906.46
  5. Step 5: Solve for x
    x = 2,235,209,906.46/54,739.90
  6. Step 6: Final answer
    x = 40,833.28

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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.