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Finding the Fourth Proportional to 4,981.92, 7,470.72 and 1,694.13

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Solution

The fourth proportional to 4,981.92, 7,470.72 and 1,694.13 is: 2,540.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,981.92 : 7,470.72 = 1,694.13 : x
  2. Step 2: Convert to fraction form
    4,981.92/7,470.72 = 1,694.13/x
  3. Step 3: Cross multiply
    4,981.92x = 7,470.72 × 1,694.13
  4. Step 4: Simplify right side
    4,981.92x = 12,656,370.87
  5. Step 5: Solve for x
    x = 12,656,370.87/4,981.92
  6. Step 6: Final answer
    x = 2,540.46

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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.