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Finding the Fourth Proportional to 33,376.20, 49,934.70 and 21,712.20

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Solution

The fourth proportional to 33,376.20, 49,934.70 and 21,712.20 is: 32,483.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,376.20 : 49,934.70 = 21,712.20 : x
  2. Step 2: Convert to fraction form
    33,376.20/49,934.70 = 21,712.20/x
  3. Step 3: Cross multiply
    33,376.20x = 49,934.70 × 21,712.20
  4. Step 4: Simplify right side
    33,376.20x = 1,084,192,193.34
  5. Step 5: Solve for x
    x = 1,084,192,193.34/33,376.20
  6. Step 6: Final answer
    x = 32,483.99

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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.