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Finding the Fourth Proportional to 18,570.52, 27,854.44 and 8,712.04

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Solution

The fourth proportional to 18,570.52, 27,854.44 and 8,712.04 is: 13,067.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,570.52 : 27,854.44 = 8,712.04 : x
  2. Step 2: Convert to fraction form
    18,570.52/27,854.44 = 8,712.04/x
  3. Step 3: Cross multiply
    18,570.52x = 27,854.44 × 8,712.04
  4. Step 4: Simplify right side
    18,570.52x = 242,668,995.46
  5. Step 5: Solve for x
    x = 242,668,995.46/18,570.52
  6. Step 6: Final answer
    x = 13,067.43

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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.