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Finding the Fourth Proportional to 54,840.92, 75,680.42 and 29,690.42

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Solution

The fourth proportional to 54,840.92, 75,680.42 and 29,690.42 is: 40,972.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,840.92 : 75,680.42 = 29,690.42 : x
  2. Step 2: Convert to fraction form
    54,840.92/75,680.42 = 29,690.42/x
  3. Step 3: Cross multiply
    54,840.92x = 75,680.42 × 29,690.42
  4. Step 4: Simplify right side
    54,840.92x = 2,246,983,455.58
  5. Step 5: Solve for x
    x = 2,246,983,455.58/54,840.92
  6. Step 6: Final answer
    x = 40,972.75

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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.