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Finding the Fourth Proportional to 16,379.72, 22,604.64 and 8,927.72

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Solution

The fourth proportional to 16,379.72, 22,604.64 and 8,927.72 is: 12,320.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,379.72 : 22,604.64 = 8,927.72 : x
  2. Step 2: Convert to fraction form
    16,379.72/22,604.64 = 8,927.72/x
  3. Step 3: Cross multiply
    16,379.72x = 22,604.64 × 8,927.72
  4. Step 4: Simplify right side
    16,379.72x = 201,807,896.62
  5. Step 5: Solve for x
    x = 201,807,896.62/16,379.72
  6. Step 6: Final answer
    x = 12,320.60

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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.