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Finding the Fourth Proportional to 17,709.98, 26,548.56 and 8,934.71

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Solution

The fourth proportional to 17,709.98, 26,548.56 and 8,934.71 is: 13,393.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,709.98 : 26,548.56 = 8,934.71 : x
  2. Step 2: Convert to fraction form
    17,709.98/26,548.56 = 8,934.71/x
  3. Step 3: Cross multiply
    17,709.98x = 26,548.56 × 8,934.71
  4. Step 4: Simplify right side
    17,709.98x = 237,203,551.77
  5. Step 5: Solve for x
    x = 237,203,551.77/17,709.98
  6. Step 6: Final answer
    x = 13,393.78

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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.