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Finding the Fourth Proportional to 16,388.52, 22,616.12 and 8,936.52

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Solution

The fourth proportional to 16,388.52, 22,616.12 and 8,936.52 is: 12,332.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,388.52 : 22,616.12 = 8,936.52 : x
  2. Step 2: Convert to fraction form
    16,388.52/22,616.12 = 8,936.52/x
  3. Step 3: Cross multiply
    16,388.52x = 22,616.12 × 8,936.52
  4. Step 4: Simplify right side
    16,388.52x = 202,109,408.70
  5. Step 5: Solve for x
    x = 202,109,408.70/16,388.52
  6. Step 6: Final answer
    x = 12,332.38

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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.