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Finding the Fourth Proportional to 16,518.82, 22,795.99 and 8,965.15

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Solution

The fourth proportional to 16,518.82, 22,795.99 and 8,965.15 is: 12,371.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,518.82 : 22,795.99 = 8,965.15 : x
  2. Step 2: Convert to fraction form
    16,518.82/22,795.99 = 8,965.15/x
  3. Step 3: Cross multiply
    16,518.82x = 22,795.99 × 8,965.15
  4. Step 4: Simplify right side
    16,518.82x = 204,369,424.92
  5. Step 5: Solve for x
    x = 204,369,424.92/16,518.82
  6. Step 6: Final answer
    x = 12,371.91

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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.