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Finding the Fourth Proportional to 62,963.85, 94,423.08 and 20,836.15

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Solution

The fourth proportional to 62,963.85, 94,423.08 and 20,836.15 is: 31,246.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,963.85 : 94,423.08 = 20,836.15 : x
  2. Step 2: Convert to fraction form
    62,963.85/94,423.08 = 20,836.15/x
  3. Step 3: Cross multiply
    62,963.85x = 94,423.08 × 20,836.15
  4. Step 4: Simplify right side
    62,963.85x = 1,967,413,458.34
  5. Step 5: Solve for x
    x = 1,967,413,458.34/62,963.85
  6. Step 6: Final answer
    x = 31,246.71

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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.