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Finding the Fourth Proportional to 11,788.95, 17,687.22 and 4,394.46

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Solution

The fourth proportional to 11,788.95, 17,687.22 and 4,394.46 is: 6,593.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,788.95 : 17,687.22 = 4,394.46 : x
  2. Step 2: Convert to fraction form
    11,788.95/17,687.22 = 4,394.46/x
  3. Step 3: Cross multiply
    11,788.95x = 17,687.22 × 4,394.46
  4. Step 4: Simplify right side
    11,788.95x = 77,725,780.80
  5. Step 5: Solve for x
    x = 77,725,780.80/11,788.95
  6. Step 6: Final answer
    x = 6,593.10

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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.