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Finding the Fourth Proportional to 8,666.18, 11,956.53 and 6,843.41

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Solution

The fourth proportional to 8,666.18, 11,956.53 and 6,843.41 is: 9,441.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,666.18 : 11,956.53 = 6,843.41 : x
  2. Step 2: Convert to fraction form
    8,666.18/11,956.53 = 6,843.41/x
  3. Step 3: Cross multiply
    8,666.18x = 11,956.53 × 6,843.41
  4. Step 4: Simplify right side
    8,666.18x = 81,823,514.94
  5. Step 5: Solve for x
    x = 81,823,514.94/8,666.18
  6. Step 6: Final answer
    x = 9,441.71

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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.