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Finding the Fourth Proportional to 17,209.78, 23,749.71 and 9,657.73

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Solution

The fourth proportional to 17,209.78, 23,749.71 and 9,657.73 is: 13,327.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,209.78 : 23,749.71 = 9,657.73 : x
  2. Step 2: Convert to fraction form
    17,209.78/23,749.71 = 9,657.73/x
  3. Step 3: Cross multiply
    17,209.78x = 23,749.71 × 9,657.73
  4. Step 4: Simplify right side
    17,209.78x = 229,368,286.76
  5. Step 5: Solve for x
    x = 229,368,286.76/17,209.78
  6. Step 6: Final answer
    x = 13,327.79

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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.