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Finding the Fourth Proportional to 33,666.40, 50,456.40 and 25,836.40

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Solution

The fourth proportional to 33,666.40, 50,456.40 and 25,836.40 is: 38,721.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,666.40 : 50,456.40 = 25,836.40 : x
  2. Step 2: Convert to fraction form
    33,666.40/50,456.40 = 25,836.40/x
  3. Step 3: Cross multiply
    33,666.40x = 50,456.40 × 25,836.40
  4. Step 4: Simplify right side
    33,666.40x = 1,303,611,732.96
  5. Step 5: Solve for x
    x = 1,303,611,732.96/33,666.40
  6. Step 6: Final answer
    x = 38,721.45

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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.