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Finding the Fourth Proportional to 11,589.82, 15,992.89 and 6,554.48

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Solution

The fourth proportional to 11,589.82, 15,992.89 and 6,554.48 is: 9,044.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,589.82 : 15,992.89 = 6,554.48 : x
  2. Step 2: Convert to fraction form
    11,589.82/15,992.89 = 6,554.48/x
  3. Step 3: Cross multiply
    11,589.82x = 15,992.89 × 6,554.48
  4. Step 4: Simplify right side
    11,589.82x = 104,824,981.30
  5. Step 5: Solve for x
    x = 104,824,981.30/11,589.82
  6. Step 6: Final answer
    x = 9,044.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.