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Finding the Fourth Proportional to 16,371.76, 22,593.02 and 8,919.76

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Solution

The fourth proportional to 16,371.76, 22,593.02 and 8,919.76 is: 12,309.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,371.76 : 22,593.02 = 8,919.76 : x
  2. Step 2: Convert to fraction form
    16,371.76/22,593.02 = 8,919.76/x
  3. Step 3: Cross multiply
    16,371.76x = 22,593.02 × 8,919.76
  4. Step 4: Simplify right side
    16,371.76x = 201,524,316.08
  5. Step 5: Solve for x
    x = 201,524,316.08/16,371.76
  6. Step 6: Final answer
    x = 12,309.26

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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.