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Finding the Fourth Proportional to 33,121.72, 49,682.58 and 19,261

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Solution

The fourth proportional to 33,121.72, 49,682.58 and 19,261 is: 28,891.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,121.72 : 49,682.58 = 19,261 : x
  2. Step 2: Convert to fraction form
    33,121.72/49,682.58 = 19,261/x
  3. Step 3: Cross multiply
    33,121.72x = 49,682.58 × 19,261
  4. Step 4: Simplify right side
    33,121.72x = 956,936,173.38
  5. Step 5: Solve for x
    x = 956,936,173.38/33,121.72
  6. Step 6: Final answer
    x = 28,891.50

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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.