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Finding the Fourth Proportional to 61,694.63, 92,541.95 and 20,141.63

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Solution

The fourth proportional to 61,694.63, 92,541.95 and 20,141.63 is: 30,212.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,694.63 : 92,541.95 = 20,141.63 : x
  2. Step 2: Convert to fraction form
    61,694.63/92,541.95 = 20,141.63/x
  3. Step 3: Cross multiply
    61,694.63x = 92,541.95 × 20,141.63
  4. Step 4: Simplify right side
    61,694.63x = 1,863,945,152.96
  5. Step 5: Solve for x
    x = 1,863,945,152.96/61,694.63
  6. Step 6: Final answer
    x = 30,212.44

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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.