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Finding the Fourth Proportional to 16,809.77, 25,193.06 and 8,471.12

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Solution

The fourth proportional to 16,809.77, 25,193.06 and 8,471.12 is: 12,695.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,809.77 : 25,193.06 = 8,471.12 : x
  2. Step 2: Convert to fraction form
    16,809.77/25,193.06 = 8,471.12/x
  3. Step 3: Cross multiply
    16,809.77x = 25,193.06 × 8,471.12
  4. Step 4: Simplify right side
    16,809.77x = 213,413,434.43
  5. Step 5: Solve for x
    x = 213,413,434.43/16,809.77
  6. Step 6: Final answer
    x = 12,695.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.