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Finding the Fourth Proportional to 18,570.97, 27,856.51 and 4,531.04

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Solution

The fourth proportional to 18,570.97, 27,856.51 and 4,531.04 is: 6,796.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,570.97 : 27,856.51 = 4,531.04 : x
  2. Step 2: Convert to fraction form
    18,570.97/27,856.51 = 4,531.04/x
  3. Step 3: Cross multiply
    18,570.97x = 27,856.51 × 4,531.04
  4. Step 4: Simplify right side
    18,570.97x = 126,218,914.92
  5. Step 5: Solve for x
    x = 126,218,914.92/18,570.97
  6. Step 6: Final answer
    x = 6,796.57

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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.