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Finding the Fourth Proportional to 17,289.56, 23,859.69 and 9,837.56

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Solution

The fourth proportional to 17,289.56, 23,859.69 and 9,837.56 is: 13,575.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,289.56 : 23,859.69 = 9,837.56 : x
  2. Step 2: Convert to fraction form
    17,289.56/23,859.69 = 9,837.56/x
  3. Step 3: Cross multiply
    17,289.56x = 23,859.69 × 9,837.56
  4. Step 4: Simplify right side
    17,289.56x = 234,721,131.96
  5. Step 5: Solve for x
    x = 234,721,131.96/17,289.56
  6. Step 6: Final answer
    x = 13,575.89

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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.