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Finding the Fourth Proportional to 33,788.80, 50,726.40 and 18,006.40

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Solution

The fourth proportional to 33,788.80, 50,726.40 and 18,006.40 is: 27,032.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,788.80 : 50,726.40 = 18,006.40 : x
  2. Step 2: Convert to fraction form
    33,788.80/50,726.40 = 18,006.40/x
  3. Step 3: Cross multiply
    33,788.80x = 50,726.40 × 18,006.40
  4. Step 4: Simplify right side
    33,788.80x = 913,399,848.96
  5. Step 5: Solve for x
    x = 913,399,848.96/33,788.80
  6. Step 6: Final answer
    x = 27,032.62

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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.