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Finding the Fourth Proportional to 17,305.89, 25,958.84 and 9,905.19

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Solution

The fourth proportional to 17,305.89, 25,958.84 and 9,905.19 is: 14,857.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,305.89 : 25,958.84 = 9,905.19 : x
  2. Step 2: Convert to fraction form
    17,305.89/25,958.84 = 9,905.19/x
  3. Step 3: Cross multiply
    17,305.89x = 25,958.84 × 9,905.19
  4. Step 4: Simplify right side
    17,305.89x = 257,127,192.85
  5. Step 5: Solve for x
    x = 257,127,192.85/17,305.89
  6. Step 6: Final answer
    x = 14,857.79

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Similar ratio
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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.