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Finding the Fourth Proportional to 73,664.28, 110,496.34 and 18,260.28

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Solution

The fourth proportional to 73,664.28, 110,496.34 and 18,260.28 is: 27,390.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,664.28 : 110,496.34 = 18,260.28 : x
  2. Step 2: Convert to fraction form
    73,664.28/110,496.34 = 18,260.28/x
  3. Step 3: Cross multiply
    73,664.28x = 110,496.34 × 18,260.28
  4. Step 4: Simplify right side
    73,664.28x = 2,017,694,107.38
  5. Step 5: Solve for x
    x = 2,017,694,107.38/73,664.28
  6. Step 6: Final answer
    x = 27,390.40

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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.