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Finding the Fourth Proportional to 54,246.79, 81,383.08 and 22,639.28

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Solution

The fourth proportional to 54,246.79, 81,383.08 and 22,639.28 is: 33,964.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,246.79 : 81,383.08 = 22,639.28 : x
  2. Step 2: Convert to fraction form
    54,246.79/81,383.08 = 22,639.28/x
  3. Step 3: Cross multiply
    54,246.79x = 81,383.08 × 22,639.28
  4. Step 4: Simplify right side
    54,246.79x = 1,842,454,335.38
  5. Step 5: Solve for x
    x = 1,842,454,335.38/54,246.79
  6. Step 6: Final answer
    x = 33,964.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.