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Finding the Fourth Proportional to 12,295.08, 16,974.99 and 8,516.90

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Solution

The fourth proportional to 12,295.08, 16,974.99 and 8,516.90 is: 11,758.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,295.08 : 16,974.99 = 8,516.90 : x
  2. Step 2: Convert to fraction form
    12,295.08/16,974.99 = 8,516.90/x
  3. Step 3: Cross multiply
    12,295.08x = 16,974.99 × 8,516.90
  4. Step 4: Simplify right side
    12,295.08x = 144,574,334.77
  5. Step 5: Solve for x
    x = 144,574,334.77/12,295.08
  6. Step 6: Final answer
    x = 11,758.71

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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.