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Finding the Fourth Proportional to 14,843.61, 20,484.23 and 8,129.27

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Solution

The fourth proportional to 14,843.61, 20,484.23 and 8,129.27 is: 11,218.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,843.61 : 20,484.23 = 8,129.27 : x
  2. Step 2: Convert to fraction form
    14,843.61/20,484.23 = 8,129.27/x
  3. Step 3: Cross multiply
    14,843.61x = 20,484.23 × 8,129.27
  4. Step 4: Simplify right side
    14,843.61x = 166,521,846.98
  5. Step 5: Solve for x
    x = 166,521,846.98/14,843.61
  6. Step 6: Final answer
    x = 11,218.42

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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.