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Finding the Fourth Proportional to 4,738.85, 7,108.52 and 1,816.92

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Solution

The fourth proportional to 4,738.85, 7,108.52 and 1,816.92 is: 2,725.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,738.85 : 7,108.52 = 1,816.92 : x
  2. Step 2: Convert to fraction form
    4,738.85/7,108.52 = 1,816.92/x
  3. Step 3: Cross multiply
    4,738.85x = 7,108.52 × 1,816.92
  4. Step 4: Simplify right side
    4,738.85x = 12,915,616.70
  5. Step 5: Solve for x
    x = 12,915,616.70/4,738.85
  6. Step 6: Final answer
    x = 2,725.48

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1.5x scale

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.