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Finding the Fourth Proportional to 4,738.77, 7,106.81 and 1,816.83

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Solution

The fourth proportional to 4,738.77, 7,106.81 and 1,816.83 is: 2,724.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,738.77 : 7,106.81 = 1,816.83 : x
  2. Step 2: Convert to fraction form
    4,738.77/7,106.81 = 1,816.83/x
  3. Step 3: Cross multiply
    4,738.77x = 7,106.81 × 1,816.83
  4. Step 4: Simplify right side
    4,738.77x = 12,911,856.53
  5. Step 5: Solve for x
    x = 12,911,856.53/4,738.77
  6. Step 6: Final answer
    x = 2,724.73

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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.