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Finding the Fourth Proportional to 33,261, 49,901.40 and 19,217.58

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Solution

The fourth proportional to 33,261, 49,901.40 and 19,217.58 is: 28,832.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,261 : 49,901.40 = 19,217.58 : x
  2. Step 2: Convert to fraction form
    33,261/49,901.40 = 19,217.58/x
  3. Step 3: Cross multiply
    33,261x = 49,901.40 × 19,217.58
  4. Step 4: Simplify right side
    33,261x = 958,984,146.61
  5. Step 5: Solve for x
    x = 958,984,146.61/33,261
  6. Step 6: Final answer
    x = 28,832.09

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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.