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Finding the Fourth Proportional to 16,363.50, 22,581.63 and 8,911.50

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Solution

The fourth proportional to 16,363.50, 22,581.63 and 8,911.50 is: 12,297.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,363.50 : 22,581.63 = 8,911.50 : x
  2. Step 2: Convert to fraction form
    16,363.50/22,581.63 = 8,911.50/x
  3. Step 3: Cross multiply
    16,363.50x = 22,581.63 × 8,911.50
  4. Step 4: Simplify right side
    16,363.50x = 201,236,195.75
  5. Step 5: Solve for x
    x = 201,236,195.75/16,363.50
  6. Step 6: Final answer
    x = 12,297.87

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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.