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Finding the Fourth Proportional to 11,703.63, 16,171.62 and 8,674.41

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Solution

The fourth proportional to 11,703.63, 16,171.62 and 8,674.41 is: 11,985.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,703.63 : 16,171.62 = 8,674.41 : x
  2. Step 2: Convert to fraction form
    11,703.63/16,171.62 = 8,674.41/x
  3. Step 3: Cross multiply
    11,703.63x = 16,171.62 × 8,674.41
  4. Step 4: Simplify right side
    11,703.63x = 140,279,262.24
  5. Step 5: Solve for x
    x = 140,279,262.24/11,703.63
  6. Step 6: Final answer
    x = 11,985.96

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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.