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Finding the Fourth Proportional to 16,463.75, 22,720.00 and 8,910.09

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Solution

The fourth proportional to 16,463.75, 22,720.00 and 8,910.09 is: 12,295.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,463.75 : 22,720.00 = 8,910.09 : x
  2. Step 2: Convert to fraction form
    16,463.75/22,720.00 = 8,910.09/x
  3. Step 3: Cross multiply
    16,463.75x = 22,720.00 × 8,910.09
  4. Step 4: Simplify right side
    16,463.75x = 202,437,238.40
  5. Step 5: Solve for x
    x = 202,437,238.40/16,463.75
  6. Step 6: Final answer
    x = 12,295.94

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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.