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Finding the Fourth Proportional to 19,603.62, 29,347.11 and 11,788.74

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Solution

The fourth proportional to 19,603.62, 29,347.11 and 11,788.74 is: 17,648.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,603.62 : 29,347.11 = 11,788.74 : x
  2. Step 2: Convert to fraction form
    19,603.62/29,347.11 = 11,788.74/x
  3. Step 3: Cross multiply
    19,603.62x = 29,347.11 × 11,788.74
  4. Step 4: Simplify right side
    19,603.62x = 345,965,449.54
  5. Step 5: Solve for x
    x = 345,965,449.54/19,603.62
  6. Step 6: Final answer
    x = 17,648.04

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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.