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Finding the Fourth Proportional to 17,761.62, 26,617 and 13,044.63

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Solution

The fourth proportional to 17,761.62, 26,617 and 13,044.63 is: 19,548.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,761.62 : 26,617 = 13,044.63 : x
  2. Step 2: Convert to fraction form
    17,761.62/26,617 = 13,044.63/x
  3. Step 3: Cross multiply
    17,761.62x = 26,617 × 13,044.63
  4. Step 4: Simplify right side
    17,761.62x = 347,208,916.71
  5. Step 5: Solve for x
    x = 347,208,916.71/17,761.62
  6. Step 6: Final answer
    x = 19,548.27

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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.