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Finding the Fourth Proportional to 62,903.94, 94,356.72 and 18,520.61

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Solution

The fourth proportional to 62,903.94, 94,356.72 and 18,520.61 is: 27,781.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,903.94 : 94,356.72 = 18,520.61 : x
  2. Step 2: Convert to fraction form
    62,903.94/94,356.72 = 18,520.61/x
  3. Step 3: Cross multiply
    62,903.94x = 94,356.72 × 18,520.61
  4. Step 4: Simplify right side
    62,903.94x = 1,747,543,540.22
  5. Step 5: Solve for x
    x = 1,747,543,540.22/62,903.94
  6. Step 6: Final answer
    x = 27,781.15

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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.