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Finding the Fourth Proportional to 16,809.70, 25,226.70 and 9,406.30

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Solution

The fourth proportional to 16,809.70, 25,226.70 and 9,406.30 is: 14,116.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,809.70 : 25,226.70 = 9,406.30 : x
  2. Step 2: Convert to fraction form
    16,809.70/25,226.70 = 9,406.30/x
  3. Step 3: Cross multiply
    16,809.70x = 25,226.70 × 9,406.30
  4. Step 4: Simplify right side
    16,809.70x = 237,289,908.21
  5. Step 5: Solve for x
    x = 237,289,908.21/16,809.70
  6. Step 6: Final answer
    x = 14,116.25

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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.