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Finding the Fourth Proportional to 70,952.67, 106,434.99 and 18,363.15

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Solution

The fourth proportional to 70,952.67, 106,434.99 and 18,363.15 is: 27,546.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,952.67 : 106,434.99 = 18,363.15 : x
  2. Step 2: Convert to fraction form
    70,952.67/106,434.99 = 18,363.15/x
  3. Step 3: Cross multiply
    70,952.67x = 106,434.99 × 18,363.15
  4. Step 4: Simplify right side
    70,952.67x = 1,954,481,686.62
  5. Step 5: Solve for x
    x = 1,954,481,686.62/70,952.67
  6. Step 6: Final answer
    x = 27,546.27

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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.