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Finding the Fourth Proportional to 16,309.36, 22,507.02 and 8,857.36

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Solution

The fourth proportional to 16,309.36, 22,507.02 and 8,857.36 is: 12,223.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,309.36 : 22,507.02 = 8,857.36 : x
  2. Step 2: Convert to fraction form
    16,309.36/22,507.02 = 8,857.36/x
  3. Step 3: Cross multiply
    16,309.36x = 22,507.02 × 8,857.36
  4. Step 4: Simplify right side
    16,309.36x = 199,352,778.67
  5. Step 5: Solve for x
    x = 199,352,778.67/16,309.36
  6. Step 6: Final answer
    x = 12,223.21

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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.