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Finding the Fourth Proportional to 17,306.39, 25,959.59 and 9,905.69

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Solution

The fourth proportional to 17,306.39, 25,959.59 and 9,905.69 is: 14,858.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,306.39 : 25,959.59 = 9,905.69 : x
  2. Step 2: Convert to fraction form
    17,306.39/25,959.59 = 9,905.69/x
  3. Step 3: Cross multiply
    17,306.39x = 25,959.59 × 9,905.69
  4. Step 4: Simplify right side
    17,306.39x = 257,147,651.07
  5. Step 5: Solve for x
    x = 257,147,651.07/17,306.39
  6. Step 6: Final answer
    x = 14,858.54

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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.