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Finding the Fourth Proportional to 62,960.76, 94,455 and 20,853.90

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Solution

The fourth proportional to 62,960.76, 94,455 and 20,853.90 is: 31,285.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,960.76 : 94,455 = 20,853.90 : x
  2. Step 2: Convert to fraction form
    62,960.76/94,455 = 20,853.90/x
  3. Step 3: Cross multiply
    62,960.76x = 94,455 × 20,853.90
  4. Step 4: Simplify right side
    62,960.76x = 1,969,755,124.50
  5. Step 5: Solve for x
    x = 1,969,755,124.50/62,960.76
  6. Step 6: Final answer
    x = 31,285.44

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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.