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Finding the Fourth Proportional to 33,916.61, 50,812.50 and 21,263.96

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Solution

The fourth proportional to 33,916.61, 50,812.50 and 21,263.96 is: 31,856.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,916.61 : 50,812.50 = 21,263.96 : x
  2. Step 2: Convert to fraction form
    33,916.61/50,812.50 = 21,263.96/x
  3. Step 3: Cross multiply
    33,916.61x = 50,812.50 × 21,263.96
  4. Step 4: Simplify right side
    33,916.61x = 1,080,474,967.50
  5. Step 5: Solve for x
    x = 1,080,474,967.50/33,916.61
  6. Step 6: Final answer
    x = 31,856.81

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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.