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Finding the Fourth Proportional to 17,791.52, 26,686.74 and 7,403

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Solution

The fourth proportional to 17,791.52, 26,686.74 and 7,403 is: 11,104.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,791.52 : 26,686.74 = 7,403 : x
  2. Step 2: Convert to fraction form
    17,791.52/26,686.74 = 7,403/x
  3. Step 3: Cross multiply
    17,791.52x = 26,686.74 × 7,403
  4. Step 4: Simplify right side
    17,791.52x = 197,561,936.22
  5. Step 5: Solve for x
    x = 197,561,936.22/17,791.52
  6. Step 6: Final answer
    x = 11,104.28

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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.