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Finding the Fourth Proportional to 17,854.85, 26,771.47 and 7,992.29

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Solution

The fourth proportional to 17,854.85, 26,771.47 and 7,992.29 is: 11,983.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,854.85 : 26,771.47 = 7,992.29 : x
  2. Step 2: Convert to fraction form
    17,854.85/26,771.47 = 7,992.29/x
  3. Step 3: Cross multiply
    17,854.85x = 26,771.47 × 7,992.29
  4. Step 4: Simplify right side
    17,854.85x = 213,965,351.97
  5. Step 5: Solve for x
    x = 213,965,351.97/17,854.85
  6. Step 6: Final answer
    x = 11,983.60

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1.5x scale

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.