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Finding the Fourth Proportional to 17,239.88, 23,791.05 and 9,787.88

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Solution

The fourth proportional to 17,239.88, 23,791.05 and 9,787.88 is: 13,507.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,239.88 : 23,791.05 = 9,787.88 : x
  2. Step 2: Convert to fraction form
    17,239.88/23,791.05 = 9,787.88/x
  3. Step 3: Cross multiply
    17,239.88x = 23,791.05 × 9,787.88
  4. Step 4: Simplify right side
    17,239.88x = 232,863,823.52
  5. Step 5: Solve for x
    x = 232,863,823.52/17,239.88
  6. Step 6: Final answer
    x = 13,507.28

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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.