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Finding the Fourth Proportional to 33,972.70, 50,956.65 and 11,780.70

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Solution

The fourth proportional to 33,972.70, 50,956.65 and 11,780.70 is: 17,670.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,972.70 : 50,956.65 = 11,780.70 : x
  2. Step 2: Convert to fraction form
    33,972.70/50,956.65 = 11,780.70/x
  3. Step 3: Cross multiply
    33,972.70x = 50,956.65 × 11,780.70
  4. Step 4: Simplify right side
    33,972.70x = 600,305,006.66
  5. Step 5: Solve for x
    x = 600,305,006.66/33,972.70
  6. Step 6: Final answer
    x = 17,670.22

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1.5x scale

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.