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Finding the Fourth Proportional to 54,420.88, 81,625.56 and 17,482

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Solution

The fourth proportional to 54,420.88, 81,625.56 and 17,482 is: 26,221.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,420.88 : 81,625.56 = 17,482 : x
  2. Step 2: Convert to fraction form
    54,420.88/81,625.56 = 17,482/x
  3. Step 3: Cross multiply
    54,420.88x = 81,625.56 × 17,482
  4. Step 4: Simplify right side
    54,420.88x = 1,426,978,039.92
  5. Step 5: Solve for x
    x = 1,426,978,039.92/54,420.88
  6. Step 6: Final answer
    x = 26,221.15

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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.