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Finding the Fourth Proportional to 41,305.94, 61,963.40 and 13,219.40

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Solution

The fourth proportional to 41,305.94, 61,963.40 and 13,219.40 is: 19,830.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,305.94 : 61,963.40 = 13,219.40 : x
  2. Step 2: Convert to fraction form
    41,305.94/61,963.40 = 13,219.40/x
  3. Step 3: Cross multiply
    41,305.94x = 61,963.40 × 13,219.40
  4. Step 4: Simplify right side
    41,305.94x = 819,118,969.96
  5. Step 5: Solve for x
    x = 819,118,969.96/41,305.94
  6. Step 6: Final answer
    x = 19,830.54

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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.